Home / 45,046.13-67,574.66-13,881.38

Finding the Fourth Proportional to 45,046.13, 67,574.66 and 13,881.38

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Solution

The fourth proportional to 45,046.13, 67,574.66 and 13,881.38 is: 20,823.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,046.13 : 67,574.66 = 13,881.38 : x
  2. Step 2: Convert to fraction form
    45,046.13/67,574.66 = 13,881.38/x
  3. Step 3: Cross multiply
    45,046.13x = 67,574.66 × 13,881.38
  4. Step 4: Simplify right side
    45,046.13x = 938,029,126.55
  5. Step 5: Solve for x
    x = 938,029,126.55/45,046.13
  6. Step 6: Final answer
    x = 20,823.75

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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.