Home / 22,776.49-31,432.34-13,215.66

Finding the Fourth Proportional to 22,776.49, 31,432.34 and 13,215.66

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Solution

The fourth proportional to 22,776.49, 31,432.34 and 13,215.66 is: 18,238.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,776.49 : 31,432.34 = 13,215.66 : x
  2. Step 2: Convert to fraction form
    22,776.49/31,432.34 = 13,215.66/x
  3. Step 3: Cross multiply
    22,776.49x = 31,432.34 × 13,215.66
  4. Step 4: Simplify right side
    22,776.49x = 415,399,118.44
  5. Step 5: Solve for x
    x = 415,399,118.44/22,776.49
  6. Step 6: Final answer
    x = 18,238.07

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Double scale
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Similar ratio
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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.