Home / 25,703.30-38,540.55-10,909.70

Finding the Fourth Proportional to 25,703.30, 38,540.55 and 10,909.70

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Solution

The fourth proportional to 25,703.30, 38,540.55 and 10,909.70 is: 16,358.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,703.30 : 38,540.55 = 10,909.70 : x
  2. Step 2: Convert to fraction form
    25,703.30/38,540.55 = 10,909.70/x
  3. Step 3: Cross multiply
    25,703.30x = 38,540.55 × 10,909.70
  4. Step 4: Simplify right side
    25,703.30x = 420,465,838.34
  5. Step 5: Solve for x
    x = 420,465,838.34/25,703.30
  6. Step 6: Final answer
    x = 16,358.44

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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.