Home / 26,507.65-36,565.30-15,891.11

Finding the Fourth Proportional to 26,507.65, 36,565.30 and 15,891.11

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Solution

The fourth proportional to 26,507.65, 36,565.30 and 15,891.11 is: 21,920.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,507.65 : 36,565.30 = 15,891.11 : x
  2. Step 2: Convert to fraction form
    26,507.65/36,565.30 = 15,891.11/x
  3. Step 3: Cross multiply
    26,507.65x = 36,565.30 × 15,891.11
  4. Step 4: Simplify right side
    26,507.65x = 581,063,315.76
  5. Step 5: Solve for x
    x = 581,063,315.76/26,507.65
  6. Step 6: Final answer
    x = 21,920.59

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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.