Home / 38,830.40-58,207.20-15,425.60

Finding the Fourth Proportional to 38,830.40, 58,207.20 and 15,425.60

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Solution

The fourth proportional to 38,830.40, 58,207.20 and 15,425.60 is: 23,123.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,830.40 : 58,207.20 = 15,425.60 : x
  2. Step 2: Convert to fraction form
    38,830.40/58,207.20 = 15,425.60/x
  3. Step 3: Cross multiply
    38,830.40x = 58,207.20 × 15,425.60
  4. Step 4: Simplify right side
    38,830.40x = 897,880,984.32
  5. Step 5: Solve for x
    x = 897,880,984.32/38,830.40
  6. Step 6: Final answer
    x = 23,123.15

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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.