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Finding the Fourth Proportional to 15,281.76, 22,921.02 and 10,820.82

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Solution

The fourth proportional to 15,281.76, 22,921.02 and 10,820.82 is: 16,230.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,281.76 : 22,921.02 = 10,820.82 : x
  2. Step 2: Convert to fraction form
    15,281.76/22,921.02 = 10,820.82/x
  3. Step 3: Cross multiply
    15,281.76x = 22,921.02 × 10,820.82
  4. Step 4: Simplify right side
    15,281.76x = 248,024,231.64
  5. Step 5: Solve for x
    x = 248,024,231.64/15,281.76
  6. Step 6: Final answer
    x = 16,230.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.