Home / 42,547.60-63,828.15-12,958.57

Finding the Fourth Proportional to 42,547.60, 63,828.15 and 12,958.57

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Solution

The fourth proportional to 42,547.60, 63,828.15 and 12,958.57 is: 19,439.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,547.60 : 63,828.15 = 12,958.57 : x
  2. Step 2: Convert to fraction form
    42,547.60/63,828.15 = 12,958.57/x
  3. Step 3: Cross multiply
    42,547.60x = 63,828.15 × 12,958.57
  4. Step 4: Simplify right side
    42,547.60x = 827,121,549.75
  5. Step 5: Solve for x
    x = 827,121,549.75/42,547.60
  6. Step 6: Final answer
    x = 19,439.91

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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.