Home / 22,116.65-30,520.67-12,685.01

Finding the Fourth Proportional to 22,116.65, 30,520.67 and 12,685.01

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Solution

The fourth proportional to 22,116.65, 30,520.67 and 12,685.01 is: 17,505.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,116.65 : 30,520.67 = 12,685.01 : x
  2. Step 2: Convert to fraction form
    22,116.65/30,520.67 = 12,685.01/x
  3. Step 3: Cross multiply
    22,116.65x = 30,520.67 × 12,685.01
  4. Step 4: Simplify right side
    22,116.65x = 387,154,788.13
  5. Step 5: Solve for x
    x = 387,154,788.13/22,116.65
  6. Step 6: Final answer
    x = 17,505.13

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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.