Home / 40,805.28-61,200-14,510.40

Finding the Fourth Proportional to 40,805.28, 61,200 and 14,510.40

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Solution

The fourth proportional to 40,805.28, 61,200 and 14,510.40 is: 21,762.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,805.28 : 61,200 = 14,510.40 : x
  2. Step 2: Convert to fraction form
    40,805.28/61,200 = 14,510.40/x
  3. Step 3: Cross multiply
    40,805.28x = 61,200 × 14,510.40
  4. Step 4: Simplify right side
    40,805.28x = 888,036,480
  5. Step 5: Solve for x
    x = 888,036,480/40,805.28
  6. Step 6: Final answer
    x = 21,762.78

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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.