Home / 20,756.34-31,139.91-5,966.46

Finding the Fourth Proportional to 20,756.34, 31,139.91 and 5,966.46

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Solution

The fourth proportional to 20,756.34, 31,139.91 and 5,966.46 is: 8,951.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,756.34 : 31,139.91 = 5,966.46 : x
  2. Step 2: Convert to fraction form
    20,756.34/31,139.91 = 5,966.46/x
  3. Step 3: Cross multiply
    20,756.34x = 31,139.91 × 5,966.46
  4. Step 4: Simplify right side
    20,756.34x = 185,795,027.42
  5. Step 5: Solve for x
    x = 185,795,027.42/20,756.34
  6. Step 6: Final answer
    x = 8,951.24

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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.