Home / 28,195.30-42,248.45-10,401.47

Finding the Fourth Proportional to 28,195.30, 42,248.45 and 10,401.47

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Solution

The fourth proportional to 28,195.30, 42,248.45 and 10,401.47 is: 15,585.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,195.30 : 42,248.45 = 10,401.47 : x
  2. Step 2: Convert to fraction form
    28,195.30/42,248.45 = 10,401.47/x
  3. Step 3: Cross multiply
    28,195.30x = 42,248.45 × 10,401.47
  4. Step 4: Simplify right side
    28,195.30x = 439,446,116.85
  5. Step 5: Solve for x
    x = 439,446,116.85/28,195.30
  6. Step 6: Final answer
    x = 15,585.79

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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.