Home / 22,331.40-30,814.74-13,377.66

Finding the Fourth Proportional to 22,331.40, 30,814.74 and 13,377.66

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Solution

The fourth proportional to 22,331.40, 30,814.74 and 13,377.66 is: 18,459.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,331.40 : 30,814.74 = 13,377.66 : x
  2. Step 2: Convert to fraction form
    22,331.40/30,814.74 = 13,377.66/x
  3. Step 3: Cross multiply
    22,331.40x = 30,814.74 × 13,377.66
  4. Step 4: Simplify right side
    22,331.40x = 412,229,114.71
  5. Step 5: Solve for x
    x = 412,229,114.71/22,331.40
  6. Step 6: Final answer
    x = 18,459.62

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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.