Home / 22,005.48-30,368.34-15,732.84

Finding the Fourth Proportional to 22,005.48, 30,368.34 and 15,732.84

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Solution

The fourth proportional to 22,005.48, 30,368.34 and 15,732.84 is: 21,711.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,005.48 : 30,368.34 = 15,732.84 : x
  2. Step 2: Convert to fraction form
    22,005.48/30,368.34 = 15,732.84/x
  3. Step 3: Cross multiply
    22,005.48x = 30,368.34 × 15,732.84
  4. Step 4: Simplify right side
    22,005.48x = 477,780,234.29
  5. Step 5: Solve for x
    x = 477,780,234.29/22,005.48
  6. Step 6: Final answer
    x = 21,711.88

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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.