Home / 28,780.28-43,174.68-9,052.28

Finding the Fourth Proportional to 28,780.28, 43,174.68 and 9,052.28

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Solution

The fourth proportional to 28,780.28, 43,174.68 and 9,052.28 is: 13,579.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.28 : 43,174.68 = 9,052.28 : x
  2. Step 2: Convert to fraction form
    28,780.28/43,174.68 = 9,052.28/x
  3. Step 3: Cross multiply
    28,780.28x = 43,174.68 × 9,052.28
  4. Step 4: Simplify right side
    28,780.28x = 390,829,292.27
  5. Step 5: Solve for x
    x = 390,829,292.27/28,780.28
  6. Step 6: Final answer
    x = 13,579.76

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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.