Home / 28,007.52-38,650.14-15,432

Finding the Fourth Proportional to 28,007.52, 38,650.14 and 15,432

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Solution

The fourth proportional to 28,007.52, 38,650.14 and 15,432 is: 21,296.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.52 : 38,650.14 = 15,432 : x
  2. Step 2: Convert to fraction form
    28,007.52/38,650.14 = 15,432/x
  3. Step 3: Cross multiply
    28,007.52x = 38,650.14 × 15,432
  4. Step 4: Simplify right side
    28,007.52x = 596,448,960.48
  5. Step 5: Solve for x
    x = 596,448,960.48/28,007.52
  6. Step 6: Final answer
    x = 21,296.03

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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.