Home / 25,556.40-38,318.20-16,781.08

Finding the Fourth Proportional to 25,556.40, 38,318.20 and 16,781.08

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Solution

The fourth proportional to 25,556.40, 38,318.20 and 16,781.08 is: 25,160.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,556.40 : 38,318.20 = 16,781.08 : x
  2. Step 2: Convert to fraction form
    25,556.40/38,318.20 = 16,781.08/x
  3. Step 3: Cross multiply
    25,556.40x = 38,318.20 × 16,781.08
  4. Step 4: Simplify right side
    25,556.40x = 643,020,779.66
  5. Step 5: Solve for x
    x = 643,020,779.66/25,556.40
  6. Step 6: Final answer
    x = 25,160.85

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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.