Home / 19,129.28-26,396.40-10,631.12

Finding the Fourth Proportional to 19,129.28, 26,396.40 and 10,631.12

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Solution

The fourth proportional to 19,129.28, 26,396.40 and 10,631.12 is: 14,669.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129.28 : 26,396.40 = 10,631.12 : x
  2. Step 2: Convert to fraction form
    19,129.28/26,396.40 = 10,631.12/x
  3. Step 3: Cross multiply
    19,129.28x = 26,396.40 × 10,631.12
  4. Step 4: Simplify right side
    19,129.28x = 280,623,295.97
  5. Step 5: Solve for x
    x = 280,623,295.97/19,129.28
  6. Step 6: Final answer
    x = 14,669.83

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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.