Home / 31,154.58-42,993.45-17,008.74

Finding the Fourth Proportional to 31,154.58, 42,993.45 and 17,008.74

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Solution

The fourth proportional to 31,154.58, 42,993.45 and 17,008.74 is: 23,472.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,154.58 : 42,993.45 = 17,008.74 : x
  2. Step 2: Convert to fraction form
    31,154.58/42,993.45 = 17,008.74/x
  3. Step 3: Cross multiply
    31,154.58x = 42,993.45 × 17,008.74
  4. Step 4: Simplify right side
    31,154.58x = 731,264,412.75
  5. Step 5: Solve for x
    x = 731,264,412.75/31,154.58
  6. Step 6: Final answer
    x = 23,472.13

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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.