Home / 28,000.46-38,641.66-15,900.32

Finding the Fourth Proportional to 28,000.46, 38,641.66 and 15,900.32

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Solution

The fourth proportional to 28,000.46, 38,641.66 and 15,900.32 is: 21,943.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000.46 : 38,641.66 = 15,900.32 : x
  2. Step 2: Convert to fraction form
    28,000.46/38,641.66 = 15,900.32/x
  3. Step 3: Cross multiply
    28,000.46x = 38,641.66 × 15,900.32
  4. Step 4: Simplify right side
    28,000.46x = 614,414,759.33
  5. Step 5: Solve for x
    x = 614,414,759.33/28,000.46
  6. Step 6: Final answer
    x = 21,943.02

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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.