Home / 20,001.20-29,958.60-10,756.40

Finding the Fourth Proportional to 20,001.20, 29,958.60 and 10,756.40

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Solution

The fourth proportional to 20,001.20, 29,958.60 and 10,756.40 is: 16,111.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.20 : 29,958.60 = 10,756.40 : x
  2. Step 2: Convert to fraction form
    20,001.20/29,958.60 = 10,756.40/x
  3. Step 3: Cross multiply
    20,001.20x = 29,958.60 × 10,756.40
  4. Step 4: Simplify right side
    20,001.20x = 322,246,685.04
  5. Step 5: Solve for x
    x = 322,246,685.04/20,001.20
  6. Step 6: Final answer
    x = 16,111.37

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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.