Home / 25,386.86-38,123.85-15,583.70

Finding the Fourth Proportional to 25,386.86, 38,123.85 and 15,583.70

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Solution

The fourth proportional to 25,386.86, 38,123.85 and 15,583.70 is: 23,402.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,386.86 : 38,123.85 = 15,583.70 : x
  2. Step 2: Convert to fraction form
    25,386.86/38,123.85 = 15,583.70/x
  3. Step 3: Cross multiply
    25,386.86x = 38,123.85 × 15,583.70
  4. Step 4: Simplify right side
    25,386.86x = 594,110,641.25
  5. Step 5: Solve for x
    x = 594,110,641.25/25,386.86
  6. Step 6: Final answer
    x = 23,402.29

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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.