Home / 26,123.50-39,146.84-15,438.86

Finding the Fourth Proportional to 26,123.50, 39,146.84 and 15,438.86

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Solution

The fourth proportional to 26,123.50, 39,146.84 and 15,438.86 is: 23,135.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,123.50 : 39,146.84 = 15,438.86 : x
  2. Step 2: Convert to fraction form
    26,123.50/39,146.84 = 15,438.86/x
  3. Step 3: Cross multiply
    26,123.50x = 39,146.84 × 15,438.86
  4. Step 4: Simplify right side
    26,123.50x = 604,382,582.20
  5. Step 5: Solve for x
    x = 604,382,582.20/26,123.50
  6. Step 6: Final answer
    x = 23,135.59

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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.