Home / 28,215.16-42,336.61-11,347.49

Finding the Fourth Proportional to 28,215.16, 42,336.61 and 11,347.49

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Solution

The fourth proportional to 28,215.16, 42,336.61 and 11,347.49 is: 17,026.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,215.16 : 42,336.61 = 11,347.49 : x
  2. Step 2: Convert to fraction form
    28,215.16/42,336.61 = 11,347.49/x
  3. Step 3: Cross multiply
    28,215.16x = 42,336.61 × 11,347.49
  4. Step 4: Simplify right side
    28,215.16x = 480,414,307.71
  5. Step 5: Solve for x
    x = 480,414,307.71/28,215.16
  6. Step 6: Final answer
    x = 17,026.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.