Home / 20,743.16-31,109.70-5,948.60

Finding the Fourth Proportional to 20,743.16, 31,109.70 and 5,948.60

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Solution

The fourth proportional to 20,743.16, 31,109.70 and 5,948.60 is: 8,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743.16 : 31,109.70 = 5,948.60 : x
  2. Step 2: Convert to fraction form
    20,743.16/31,109.70 = 5,948.60/x
  3. Step 3: Cross multiply
    20,743.16x = 31,109.70 × 5,948.60
  4. Step 4: Simplify right side
    20,743.16x = 185,059,161.42
  5. Step 5: Solve for x
    x = 185,059,161.42/20,743.16
  6. Step 6: Final answer
    x = 8,921.45

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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.