Home / 28,385.60-42,531.54-17,258.62

Finding the Fourth Proportional to 28,385.60, 42,531.54 and 17,258.62

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Solution

The fourth proportional to 28,385.60, 42,531.54 and 17,258.62 is: 25,859.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385.60 : 42,531.54 = 17,258.62 : x
  2. Step 2: Convert to fraction form
    28,385.60/42,531.54 = 17,258.62/x
  3. Step 3: Cross multiply
    28,385.60x = 42,531.54 × 17,258.62
  4. Step 4: Simplify right side
    28,385.60x = 734,035,686.87
  5. Step 5: Solve for x
    x = 734,035,686.87/28,385.60
  6. Step 6: Final answer
    x = 25,859.44

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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.