Home / 19,005.28-28,468.80-15,287.52

Finding the Fourth Proportional to 19,005.28, 28,468.80 and 15,287.52

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Solution

The fourth proportional to 19,005.28, 28,468.80 and 15,287.52 is: 22,899.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.28 : 28,468.80 = 15,287.52 : x
  2. Step 2: Convert to fraction form
    19,005.28/28,468.80 = 15,287.52/x
  3. Step 3: Cross multiply
    19,005.28x = 28,468.80 × 15,287.52
  4. Step 4: Simplify right side
    19,005.28x = 435,217,349.38
  5. Step 5: Solve for x
    x = 435,217,349.38/19,005.28
  6. Step 6: Final answer
    x = 22,899.81

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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.