Home / 20,003.47-29,995.41-11,685.58

Finding the Fourth Proportional to 20,003.47, 29,995.41 and 11,685.58

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Solution

The fourth proportional to 20,003.47, 29,995.41 and 11,685.58 is: 17,522.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,003.47 : 29,995.41 = 11,685.58 : x
  2. Step 2: Convert to fraction form
    20,003.47/29,995.41 = 11,685.58/x
  3. Step 3: Cross multiply
    20,003.47x = 29,995.41 × 11,685.58
  4. Step 4: Simplify right side
    20,003.47x = 350,513,763.19
  5. Step 5: Solve for x
    x = 350,513,763.19/20,003.47
  6. Step 6: Final answer
    x = 17,522.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.