Home / 28,098.46-38,775.78-15,523.18

Finding the Fourth Proportional to 28,098.46, 38,775.78 and 15,523.18

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Solution

The fourth proportional to 28,098.46, 38,775.78 and 15,523.18 is: 21,421.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,098.46 : 38,775.78 = 15,523.18 : x
  2. Step 2: Convert to fraction form
    28,098.46/38,775.78 = 15,523.18/x
  3. Step 3: Cross multiply
    28,098.46x = 38,775.78 × 15,523.18
  4. Step 4: Simplify right side
    28,098.46x = 601,923,412.58
  5. Step 5: Solve for x
    x = 601,923,412.58/28,098.46
  6. Step 6: Final answer
    x = 21,421.94

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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.