Home / 42,836.28-64,242.09-14,755.20

Finding the Fourth Proportional to 42,836.28, 64,242.09 and 14,755.20

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Solution

The fourth proportional to 42,836.28, 64,242.09 and 14,755.20 is: 22,128.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,836.28 : 64,242.09 = 14,755.20 : x
  2. Step 2: Convert to fraction form
    42,836.28/64,242.09 = 14,755.20/x
  3. Step 3: Cross multiply
    42,836.28x = 64,242.09 × 14,755.20
  4. Step 4: Simplify right side
    42,836.28x = 947,904,886.37
  5. Step 5: Solve for x
    x = 947,904,886.37/42,836.28
  6. Step 6: Final answer
    x = 22,128.55

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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.