Home / 23,029.41-31,780.53-12,957.87

Finding the Fourth Proportional to 23,029.41, 31,780.53 and 12,957.87

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Solution

The fourth proportional to 23,029.41, 31,780.53 and 12,957.87 is: 17,881.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,029.41 : 31,780.53 = 12,957.87 : x
  2. Step 2: Convert to fraction form
    23,029.41/31,780.53 = 12,957.87/x
  3. Step 3: Cross multiply
    23,029.41x = 31,780.53 × 12,957.87
  4. Step 4: Simplify right side
    23,029.41x = 411,807,976.27
  5. Step 5: Solve for x
    x = 411,807,976.27/23,029.41
  6. Step 6: Final answer
    x = 17,881.83

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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.