Home / 22,612.45-31,206.78-12,541.85

Finding the Fourth Proportional to 22,612.45, 31,206.78 and 12,541.85

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Solution

The fourth proportional to 22,612.45, 31,206.78 and 12,541.85 is: 17,308.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,612.45 : 31,206.78 = 12,541.85 : x
  2. Step 2: Convert to fraction form
    22,612.45/31,206.78 = 12,541.85/x
  3. Step 3: Cross multiply
    22,612.45x = 31,206.78 × 12,541.85
  4. Step 4: Simplify right side
    22,612.45x = 391,390,753.74
  5. Step 5: Solve for x
    x = 391,390,753.74/22,612.45
  6. Step 6: Final answer
    x = 17,308.64

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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.