Home / 38,871.60-58,292.76-12,569.28

Finding the Fourth Proportional to 38,871.60, 58,292.76 and 12,569.28

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Solution

The fourth proportional to 38,871.60, 58,292.76 and 12,569.28 is: 18,849.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,871.60 : 58,292.76 = 12,569.28 : x
  2. Step 2: Convert to fraction form
    38,871.60/58,292.76 = 12,569.28/x
  3. Step 3: Cross multiply
    38,871.60x = 58,292.76 × 12,569.28
  4. Step 4: Simplify right side
    38,871.60x = 732,698,022.41
  5. Step 5: Solve for x
    x = 732,698,022.41/38,871.60
  6. Step 6: Final answer
    x = 18,849.19

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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.