Home / 40,001.28-59,984.64-15,360

Finding the Fourth Proportional to 40,001.28, 59,984.64 and 15,360

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Solution

The fourth proportional to 40,001.28, 59,984.64 and 15,360 is: 23,033.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,001.28 : 59,984.64 = 15,360 : x
  2. Step 2: Convert to fraction form
    40,001.28/59,984.64 = 15,360/x
  3. Step 3: Cross multiply
    40,001.28x = 59,984.64 × 15,360
  4. Step 4: Simplify right side
    40,001.28x = 921,364,070.40
  5. Step 5: Solve for x
    x = 921,364,070.40/40,001.28
  6. Step 6: Final answer
    x = 23,033.36

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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.