Home / 25,654.40-38,432.40-19,782.08

Finding the Fourth Proportional to 25,654.40, 38,432.40 and 19,782.08

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Solution

The fourth proportional to 25,654.40, 38,432.40 and 19,782.08 is: 29,635.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,654.40 : 38,432.40 = 19,782.08 : x
  2. Step 2: Convert to fraction form
    25,654.40/38,432.40 = 19,782.08/x
  3. Step 3: Cross multiply
    25,654.40x = 38,432.40 × 19,782.08
  4. Step 4: Simplify right side
    25,654.40x = 760,272,811.39
  5. Step 5: Solve for x
    x = 760,272,811.39/25,654.40
  6. Step 6: Final answer
    x = 29,635.18

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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.