Home / 22,613.40-31,206.20-12,541.86

Finding the Fourth Proportional to 22,613.40, 31,206.20 and 12,541.86

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Solution

The fourth proportional to 22,613.40, 31,206.20 and 12,541.86 is: 17,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,613.40 : 31,206.20 = 12,541.86 : x
  2. Step 2: Convert to fraction form
    22,613.40/31,206.20 = 12,541.86/x
  3. Step 3: Cross multiply
    22,613.40x = 31,206.20 × 12,541.86
  4. Step 4: Simplify right side
    22,613.40x = 391,383,728.82
  5. Step 5: Solve for x
    x = 391,383,728.82/22,613.40
  6. Step 6: Final answer
    x = 17,307.60

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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.