Home / 40,320.64-60,378.90-21,531.88

Finding the Fourth Proportional to 40,320.64, 60,378.90 and 21,531.88

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Solution

The fourth proportional to 40,320.64, 60,378.90 and 21,531.88 is: 32,243.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,320.64 : 60,378.90 = 21,531.88 : x
  2. Step 2: Convert to fraction form
    40,320.64/60,378.90 = 21,531.88/x
  3. Step 3: Cross multiply
    40,320.64x = 60,378.90 × 21,531.88
  4. Step 4: Simplify right side
    40,320.64x = 1,300,071,229.33
  5. Step 5: Solve for x
    x = 1,300,071,229.33/40,320.64
  6. Step 6: Final answer
    x = 32,243.32

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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.