Home / 20,723,287.28-28,598,594.10-11,431,139.72

Finding the Fourth Proportional to 20,723,287.28, 28,598,594.10 and 11,431,139.72

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Solution

The fourth proportional to 20,723,287.28, 28,598,594.10 and 11,431,139.72 is: 15,775,225.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723,287.28 : 28,598,594.10 = 11,431,139.72 : x
  2. Step 2: Convert to fraction form
    20,723,287.28/28,598,594.10 = 11,431,139.72/x
  3. Step 3: Cross multiply
    20,723,287.28x = 28,598,594.10 × 11,431,139.72
  4. Step 4: Simplify right side
    20,723,287.28x = 326,914,524,952,667.69
  5. Step 5: Solve for x
    x = 326,914,524,952,667.69/20,723,287.28
  6. Step 6: Final answer
    x = 15,775,225.26

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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.