Home / 38,939.60-58,438.20-25,787.60

Finding the Fourth Proportional to 38,939.60, 58,438.20 and 25,787.60

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Solution

The fourth proportional to 38,939.60, 58,438.20 and 25,787.60 is: 38,700.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,939.60 : 58,438.20 = 25,787.60 : x
  2. Step 2: Convert to fraction form
    38,939.60/58,438.20 = 25,787.60/x
  3. Step 3: Cross multiply
    38,939.60x = 58,438.20 × 25,787.60
  4. Step 4: Simplify right side
    38,939.60x = 1,506,980,926.32
  5. Step 5: Solve for x
    x = 1,506,980,926.32/38,939.60
  6. Step 6: Final answer
    x = 38,700.47

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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.