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Finding the Fourth Proportional to 40,480.32, 60,724.80 and 10,898.58

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Solution

The fourth proportional to 40,480.32, 60,724.80 and 10,898.58 is: 16,349.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,480.32 : 60,724.80 = 10,898.58 : x
  2. Step 2: Convert to fraction form
    40,480.32/60,724.80 = 10,898.58/x
  3. Step 3: Cross multiply
    40,480.32x = 60,724.80 × 10,898.58
  4. Step 4: Simplify right side
    40,480.32x = 661,814,090.78
  5. Step 5: Solve for x
    x = 661,814,090.78/40,480.32
  6. Step 6: Final answer
    x = 16,349.03

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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.