Home / 42,899.97-64,334.13-14,812.80

Finding the Fourth Proportional to 42,899.97, 64,334.13 and 14,812.80

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Solution

The fourth proportional to 42,899.97, 64,334.13 and 14,812.80 is: 22,213.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,899.97 : 64,334.13 = 14,812.80 : x
  2. Step 2: Convert to fraction form
    42,899.97/64,334.13 = 14,812.80/x
  3. Step 3: Cross multiply
    42,899.97x = 64,334.13 × 14,812.80
  4. Step 4: Simplify right side
    42,899.97x = 952,968,600.86
  5. Step 5: Solve for x
    x = 952,968,600.86/42,899.97
  6. Step 6: Final answer
    x = 22,213.74

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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.