Home / 28,146.32-38,842.44-15,572.24

Finding the Fourth Proportional to 28,146.32, 38,842.44 and 15,572.24

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Solution

The fourth proportional to 28,146.32, 38,842.44 and 15,572.24 is: 21,489.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,146.32 : 38,842.44 = 15,572.24 : x
  2. Step 2: Convert to fraction form
    28,146.32/38,842.44 = 15,572.24/x
  3. Step 3: Cross multiply
    28,146.32x = 38,842.44 × 15,572.24
  4. Step 4: Simplify right side
    28,146.32x = 604,863,797.87
  5. Step 5: Solve for x
    x = 604,863,797.87/28,146.32
  6. Step 6: Final answer
    x = 21,489.98

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Half scale
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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.