Home / 22,621.36-31,217.50-13,191.74

Finding the Fourth Proportional to 22,621.36, 31,217.50 and 13,191.74

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Solution

The fourth proportional to 22,621.36, 31,217.50 and 13,191.74 is: 18,204.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,621.36 : 31,217.50 = 13,191.74 : x
  2. Step 2: Convert to fraction form
    22,621.36/31,217.50 = 13,191.74/x
  3. Step 3: Cross multiply
    22,621.36x = 31,217.50 × 13,191.74
  4. Step 4: Simplify right side
    22,621.36x = 411,813,296.52
  5. Step 5: Solve for x
    x = 411,813,296.52/22,621.36
  6. Step 6: Final answer
    x = 18,204.62

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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.