Home / 40,445.12-60,643.28-15,487.00

Finding the Fourth Proportional to 40,445.12, 60,643.28 and 15,487.00

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Solution

The fourth proportional to 40,445.12, 60,643.28 and 15,487.00 is: 23,221.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,445.12 : 60,643.28 = 15,487.00 : x
  2. Step 2: Convert to fraction form
    40,445.12/60,643.28 = 15,487.00/x
  3. Step 3: Cross multiply
    40,445.12x = 60,643.28 × 15,487.00
  4. Step 4: Simplify right side
    40,445.12x = 939,182,364.47
  5. Step 5: Solve for x
    x = 939,182,364.47/40,445.12
  6. Step 6: Final answer
    x = 23,221.15

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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.