Home / 28,012.41-38,657.39-15,437.61

Finding the Fourth Proportional to 28,012.41, 38,657.39 and 15,437.61

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Solution

The fourth proportional to 28,012.41, 38,657.39 and 15,437.61 is: 21,304.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012.41 : 38,657.39 = 15,437.61 : x
  2. Step 2: Convert to fraction form
    28,012.41/38,657.39 = 15,437.61/x
  3. Step 3: Cross multiply
    28,012.41x = 38,657.39 × 15,437.61
  4. Step 4: Simplify right side
    28,012.41x = 596,777,633.25
  5. Step 5: Solve for x
    x = 596,777,633.25/28,012.41
  6. Step 6: Final answer
    x = 21,304.04

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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.