Home / 28,272.90-42,402.24-11,637.57

Finding the Fourth Proportional to 28,272.90, 42,402.24 and 11,637.57

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Solution

The fourth proportional to 28,272.90, 42,402.24 and 11,637.57 is: 17,453.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,272.90 : 42,402.24 = 11,637.57 : x
  2. Step 2: Convert to fraction form
    28,272.90/42,402.24 = 11,637.57/x
  3. Step 3: Cross multiply
    28,272.90x = 42,402.24 × 11,637.57
  4. Step 4: Simplify right side
    28,272.90x = 493,459,036.16
  5. Step 5: Solve for x
    x = 493,459,036.16/28,272.90
  6. Step 6: Final answer
    x = 17,453.43

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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.