Home / 23,030.41-31,781.91-12,958.87

Finding the Fourth Proportional to 23,030.41, 31,781.91 and 12,958.87

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Solution

The fourth proportional to 23,030.41, 31,781.91 and 12,958.87 is: 17,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,030.41 : 31,781.91 = 12,958.87 : x
  2. Step 2: Convert to fraction form
    23,030.41/31,781.91 = 12,958.87/x
  3. Step 3: Cross multiply
    23,030.41x = 31,781.91 × 12,958.87
  4. Step 4: Simplify right side
    23,030.41x = 411,857,640.04
  5. Step 5: Solve for x
    x = 411,857,640.04/23,030.41
  6. Step 6: Final answer
    x = 17,883.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.