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Finding the Fourth Proportional to 40,486.71, 60,728.32 and 13,835.08

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Solution

The fourth proportional to 40,486.71, 60,728.32 and 13,835.08 is: 20,752.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,486.71 : 60,728.32 = 13,835.08 : x
  2. Step 2: Convert to fraction form
    40,486.71/60,728.32 = 13,835.08/x
  3. Step 3: Cross multiply
    40,486.71x = 60,728.32 × 13,835.08
  4. Step 4: Simplify right side
    40,486.71x = 840,181,165.47
  5. Step 5: Solve for x
    x = 840,181,165.47/40,486.71
  6. Step 6: Final answer
    x = 20,752.02

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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.