Home / 25,654.60-38,417.10-20,470.60

Finding the Fourth Proportional to 25,654.60, 38,417.10 and 20,470.60

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Solution

The fourth proportional to 25,654.60, 38,417.10 and 20,470.60 is: 30,654.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,654.60 : 38,417.10 = 20,470.60 : x
  2. Step 2: Convert to fraction form
    25,654.60/38,417.10 = 20,470.60/x
  3. Step 3: Cross multiply
    25,654.60x = 38,417.10 × 20,470.60
  4. Step 4: Simplify right side
    25,654.60x = 786,421,087.26
  5. Step 5: Solve for x
    x = 786,421,087.26/25,654.60
  6. Step 6: Final answer
    x = 30,654.19

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1.5x scale

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.