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Finding the Fourth Proportional to 39,894.90, 59,795.64 and 25,645.20

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Solution

The fourth proportional to 39,894.90, 59,795.64 and 25,645.20 is: 38,437.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,894.90 : 59,795.64 = 25,645.20 : x
  2. Step 2: Convert to fraction form
    39,894.90/59,795.64 = 25,645.20/x
  3. Step 3: Cross multiply
    39,894.90x = 59,795.64 × 25,645.20
  4. Step 4: Simplify right side
    39,894.90x = 1,533,471,146.93
  5. Step 5: Solve for x
    x = 1,533,471,146.93/39,894.90
  6. Step 6: Final answer
    x = 38,437.77

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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.