Home / 45,046.40-67,569.96-13,881.92

Finding the Fourth Proportional to 45,046.40, 67,569.96 and 13,881.92

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Solution

The fourth proportional to 45,046.40, 67,569.96 and 13,881.92 is: 20,822.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,046.40 : 67,569.96 = 13,881.92 : x
  2. Step 2: Convert to fraction form
    45,046.40/67,569.96 = 13,881.92/x
  3. Step 3: Cross multiply
    45,046.40x = 67,569.96 × 13,881.92
  4. Step 4: Simplify right side
    45,046.40x = 938,000,779.12
  5. Step 5: Solve for x
    x = 938,000,779.12/45,046.40
  6. Step 6: Final answer
    x = 20,822.99

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1.5x scale

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.