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Finding the Fourth Proportional to 40,484.80, 55,895.03 and 25,398.15

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Solution

The fourth proportional to 40,484.80, 55,895.03 and 25,398.15 is: 35,065.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,484.80 : 55,895.03 = 25,398.15 : x
  2. Step 2: Convert to fraction form
    40,484.80/55,895.03 = 25,398.15/x
  3. Step 3: Cross multiply
    40,484.80x = 55,895.03 × 25,398.15
  4. Step 4: Simplify right side
    40,484.80x = 1,419,630,356.19
  5. Step 5: Solve for x
    x = 1,419,630,356.19/40,484.80
  6. Step 6: Final answer
    x = 35,065.76

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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.