Home / 22,457.65-30,991.80-12,386.11

Finding the Fourth Proportional to 22,457.65, 30,991.80 and 12,386.11

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Solution

The fourth proportional to 22,457.65, 30,991.80 and 12,386.11 is: 17,092.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,457.65 : 30,991.80 = 12,386.11 : x
  2. Step 2: Convert to fraction form
    22,457.65/30,991.80 = 12,386.11/x
  3. Step 3: Cross multiply
    22,457.65x = 30,991.80 × 12,386.11
  4. Step 4: Simplify right side
    22,457.65x = 383,867,843.90
  5. Step 5: Solve for x
    x = 383,867,843.90/22,457.65
  6. Step 6: Final answer
    x = 17,092.97

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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.