Home / 28,225-38,951.46-18,306.28

Finding the Fourth Proportional to 28,225, 38,951.46 and 18,306.28

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Solution

The fourth proportional to 28,225, 38,951.46 and 18,306.28 is: 25,263.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225 : 38,951.46 = 18,306.28 : x
  2. Step 2: Convert to fraction form
    28,225/38,951.46 = 18,306.28/x
  3. Step 3: Cross multiply
    28,225x = 38,951.46 × 18,306.28
  4. Step 4: Simplify right side
    28,225x = 713,056,333.17
  5. Step 5: Solve for x
    x = 713,056,333.17/28,225
  6. Step 6: Final answer
    x = 25,263.29

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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.