Home / 28,182.25-38,892.72-15,607

Finding the Fourth Proportional to 28,182.25, 38,892.72 and 15,607

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Solution

The fourth proportional to 28,182.25, 38,892.72 and 15,607 is: 21,538.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,182.25 : 38,892.72 = 15,607 : x
  2. Step 2: Convert to fraction form
    28,182.25/38,892.72 = 15,607/x
  3. Step 3: Cross multiply
    28,182.25x = 38,892.72 × 15,607
  4. Step 4: Simplify right side
    28,182.25x = 606,998,681.04
  5. Step 5: Solve for x
    x = 606,998,681.04/28,182.25
  6. Step 6: Final answer
    x = 21,538.33

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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.