Home / 28,102.78-38,764.47-23,553.82

Finding the Fourth Proportional to 28,102.78, 38,764.47 and 23,553.82

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Solution

The fourth proportional to 28,102.78, 38,764.47 and 23,553.82 is: 32,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,102.78 : 38,764.47 = 23,553.82 : x
  2. Step 2: Convert to fraction form
    28,102.78/38,764.47 = 23,553.82/x
  3. Step 3: Cross multiply
    28,102.78x = 38,764.47 × 23,553.82
  4. Step 4: Simplify right side
    28,102.78x = 913,051,348.78
  5. Step 5: Solve for x
    x = 913,051,348.78/28,102.78
  6. Step 6: Final answer
    x = 32,489.72

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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.