Home / 31,033.84-42,825.40-16,886.76

Finding the Fourth Proportional to 31,033.84, 42,825.40 and 16,886.76

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Solution

The fourth proportional to 31,033.84, 42,825.40 and 16,886.76 is: 23,303.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,033.84 : 42,825.40 = 16,886.76 : x
  2. Step 2: Convert to fraction form
    31,033.84/42,825.40 = 16,886.76/x
  3. Step 3: Cross multiply
    31,033.84x = 42,825.40 × 16,886.76
  4. Step 4: Simplify right side
    31,033.84x = 723,182,251.70
  5. Step 5: Solve for x
    x = 723,182,251.70/31,033.84
  6. Step 6: Final answer
    x = 23,303.02

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.