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Finding the Fourth Proportional to 25,630.71, 35,374.07 and 15,020.12

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Solution

The fourth proportional to 25,630.71, 35,374.07 and 15,020.12 is: 20,729.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,630.71 : 35,374.07 = 15,020.12 : x
  2. Step 2: Convert to fraction form
    25,630.71/35,374.07 = 15,020.12/x
  3. Step 3: Cross multiply
    25,630.71x = 35,374.07 × 15,020.12
  4. Step 4: Simplify right side
    25,630.71x = 531,322,524.32
  5. Step 5: Solve for x
    x = 531,322,524.32/25,630.71
  6. Step 6: Final answer
    x = 20,729.92

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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.