Home / 28,050.30-38,708.28-15,474.78

Finding the Fourth Proportional to 28,050.30, 38,708.28 and 15,474.78

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Solution

The fourth proportional to 28,050.30, 38,708.28 and 15,474.78 is: 21,354.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,050.30 : 38,708.28 = 15,474.78 : x
  2. Step 2: Convert to fraction form
    28,050.30/38,708.28 = 15,474.78/x
  3. Step 3: Cross multiply
    28,050.30x = 38,708.28 × 15,474.78
  4. Step 4: Simplify right side
    28,050.30x = 599,002,117.18
  5. Step 5: Solve for x
    x = 599,002,117.18/28,050.30
  6. Step 6: Final answer
    x = 21,354.57

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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.