Home / 20,750.54-31,126.35-6,711.08

Finding the Fourth Proportional to 20,750.54, 31,126.35 and 6,711.08

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Solution

The fourth proportional to 20,750.54, 31,126.35 and 6,711.08 is: 10,066.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.54 : 31,126.35 = 6,711.08 : x
  2. Step 2: Convert to fraction form
    20,750.54/31,126.35 = 6,711.08/x
  3. Step 3: Cross multiply
    20,750.54x = 31,126.35 × 6,711.08
  4. Step 4: Simplify right side
    20,750.54x = 208,891,424.96
  5. Step 5: Solve for x
    x = 208,891,424.96/20,750.54
  6. Step 6: Final answer
    x = 10,066.79

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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.