Home / 23,085.70-31,850.78-14,123.86

Finding the Fourth Proportional to 23,085.70, 31,850.78 and 14,123.86

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Solution

The fourth proportional to 23,085.70, 31,850.78 and 14,123.86 is: 19,486.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,085.70 : 31,850.78 = 14,123.86 : x
  2. Step 2: Convert to fraction form
    23,085.70/31,850.78 = 14,123.86/x
  3. Step 3: Cross multiply
    23,085.70x = 31,850.78 × 14,123.86
  4. Step 4: Simplify right side
    23,085.70x = 449,855,957.61
  5. Step 5: Solve for x
    x = 449,855,957.61/23,085.70
  6. Step 6: Final answer
    x = 19,486.35

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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.