Home / 22,885.13-31,581.95-12,949.13

Finding the Fourth Proportional to 22,885.13, 31,581.95 and 12,949.13

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Solution

The fourth proportional to 22,885.13, 31,581.95 and 12,949.13 is: 17,870.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,885.13 : 31,581.95 = 12,949.13 : x
  2. Step 2: Convert to fraction form
    22,885.13/31,581.95 = 12,949.13/x
  3. Step 3: Cross multiply
    22,885.13x = 31,581.95 × 12,949.13
  4. Step 4: Simplify right side
    22,885.13x = 408,958,776.20
  5. Step 5: Solve for x
    x = 408,958,776.20/22,885.13
  6. Step 6: Final answer
    x = 17,870.07

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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.