Home / 20,801.07-31,189.11-9,542.30

Finding the Fourth Proportional to 20,801.07, 31,189.11 and 9,542.30

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Solution

The fourth proportional to 20,801.07, 31,189.11 and 9,542.30 is: 14,307.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801.07 : 31,189.11 = 9,542.30 : x
  2. Step 2: Convert to fraction form
    20,801.07/31,189.11 = 9,542.30/x
  3. Step 3: Cross multiply
    20,801.07x = 31,189.11 × 9,542.30
  4. Step 4: Simplify right side
    20,801.07x = 297,615,688.41
  5. Step 5: Solve for x
    x = 297,615,688.41/20,801.07
  6. Step 6: Final answer
    x = 14,307.71

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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.