Home / 22,660.10-31,275.93-12,591.99

Finding the Fourth Proportional to 22,660.10, 31,275.93 and 12,591.99

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Solution

The fourth proportional to 22,660.10, 31,275.93 and 12,591.99 is: 17,379.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.10 : 31,275.93 = 12,591.99 : x
  2. Step 2: Convert to fraction form
    22,660.10/31,275.93 = 12,591.99/x
  3. Step 3: Cross multiply
    22,660.10x = 31,275.93 × 12,591.99
  4. Step 4: Simplify right side
    22,660.10x = 393,826,197.80
  5. Step 5: Solve for x
    x = 393,826,197.80/22,660.10
  6. Step 6: Final answer
    x = 17,379.72

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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.