Home / 42,512.58-63,769.86-18,815.04

Finding the Fourth Proportional to 42,512.58, 63,769.86 and 18,815.04

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Solution

The fourth proportional to 42,512.58, 63,769.86 and 18,815.04 is: 28,223.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,512.58 : 63,769.86 = 18,815.04 : x
  2. Step 2: Convert to fraction form
    42,512.58/63,769.86 = 18,815.04/x
  3. Step 3: Cross multiply
    42,512.58x = 63,769.86 × 18,815.04
  4. Step 4: Simplify right side
    42,512.58x = 1,199,832,466.69
  5. Step 5: Solve for x
    x = 1,199,832,466.69/42,512.58
  6. Step 6: Final answer
    x = 28,223.00

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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.