Home / 23,082.13-31,849.41-12,870.91

Finding the Fourth Proportional to 23,082.13, 31,849.41 and 12,870.91

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Solution

The fourth proportional to 23,082.13, 31,849.41 and 12,870.91 is: 17,759.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,082.13 : 31,849.41 = 12,870.91 : x
  2. Step 2: Convert to fraction form
    23,082.13/31,849.41 = 12,870.91/x
  3. Step 3: Cross multiply
    23,082.13x = 31,849.41 × 12,870.91
  4. Step 4: Simplify right side
    23,082.13x = 409,930,889.66
  5. Step 5: Solve for x
    x = 409,930,889.66/23,082.13
  6. Step 6: Final answer
    x = 17,759.66

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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.