Home / 28,614.04-39,487.52-15,867.68

Finding the Fourth Proportional to 28,614.04, 39,487.52 and 15,867.68

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Solution

The fourth proportional to 28,614.04, 39,487.52 and 15,867.68 is: 21,897.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,614.04 : 39,487.52 = 15,867.68 : x
  2. Step 2: Convert to fraction form
    28,614.04/39,487.52 = 15,867.68/x
  3. Step 3: Cross multiply
    28,614.04x = 39,487.52 × 15,867.68
  4. Step 4: Simplify right side
    28,614.04x = 626,575,331.35
  5. Step 5: Solve for x
    x = 626,575,331.35/28,614.04
  6. Step 6: Final answer
    x = 21,897.48

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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.