Home / 25,470.05-35,149.68-13,985.42

Finding the Fourth Proportional to 25,470.05, 35,149.68 and 13,985.42

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Solution

The fourth proportional to 25,470.05, 35,149.68 and 13,985.42 is: 19,300.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,470.05 : 35,149.68 = 13,985.42 : x
  2. Step 2: Convert to fraction form
    25,470.05/35,149.68 = 13,985.42/x
  3. Step 3: Cross multiply
    25,470.05x = 35,149.68 × 13,985.42
  4. Step 4: Simplify right side
    25,470.05x = 491,582,861.92
  5. Step 5: Solve for x
    x = 491,582,861.92/25,470.05
  6. Step 6: Final answer
    x = 19,300.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.