Home / 22,379.16-30,885.66-13,998.36

Finding the Fourth Proportional to 22,379.16, 30,885.66 and 13,998.36

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Solution

The fourth proportional to 22,379.16, 30,885.66 and 13,998.36 is: 19,319.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,379.16 : 30,885.66 = 13,998.36 : x
  2. Step 2: Convert to fraction form
    22,379.16/30,885.66 = 13,998.36/x
  3. Step 3: Cross multiply
    22,379.16x = 30,885.66 × 13,998.36
  4. Step 4: Simplify right side
    22,379.16x = 432,348,587.52
  5. Step 5: Solve for x
    x = 432,348,587.52/22,379.16
  6. Step 6: Final answer
    x = 19,319.25

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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.