Home / 23,030.38-31,778.94-12,958.48

Finding the Fourth Proportional to 23,030.38, 31,778.94 and 12,958.48

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Solution

The fourth proportional to 23,030.38, 31,778.94 and 12,958.48 is: 17,881.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,030.38 : 31,778.94 = 12,958.48 : x
  2. Step 2: Convert to fraction form
    23,030.38/31,778.94 = 12,958.48/x
  3. Step 3: Cross multiply
    23,030.38x = 31,778.94 × 12,958.48
  4. Step 4: Simplify right side
    23,030.38x = 411,806,758.41
  5. Step 5: Solve for x
    x = 411,806,758.41/23,030.38
  6. Step 6: Final answer
    x = 17,881.02

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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.