Home / 28,063.22-38,727.16-15,487.88

Finding the Fourth Proportional to 28,063.22, 38,727.16 and 15,487.88

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Solution

The fourth proportional to 28,063.22, 38,727.16 and 15,487.88 is: 21,373.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,063.22 : 38,727.16 = 15,487.88 : x
  2. Step 2: Convert to fraction form
    28,063.22/38,727.16 = 15,487.88/x
  3. Step 3: Cross multiply
    28,063.22x = 38,727.16 × 15,487.88
  4. Step 4: Simplify right side
    28,063.22x = 599,801,374.47
  5. Step 5: Solve for x
    x = 599,801,374.47/28,063.22
  6. Step 6: Final answer
    x = 21,373.22

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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.