Home / 28,038.92-38,691.96-15,463.94

Finding the Fourth Proportional to 28,038.92, 38,691.96 and 15,463.94

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Solution

The fourth proportional to 28,038.92, 38,691.96 and 15,463.94 is: 21,339.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,038.92 : 38,691.96 = 15,463.94 : x
  2. Step 2: Convert to fraction form
    28,038.92/38,691.96 = 15,463.94/x
  3. Step 3: Cross multiply
    28,038.92x = 38,691.96 × 15,463.94
  4. Step 4: Simplify right side
    28,038.92x = 598,330,147.92
  5. Step 5: Solve for x
    x = 598,330,147.92/28,038.92
  6. Step 6: Final answer
    x = 21,339.27

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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.