Home / 20,118.17-30,177.56-6,970.86

Finding the Fourth Proportional to 20,118.17, 30,177.56 and 6,970.86

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Solution

The fourth proportional to 20,118.17, 30,177.56 and 6,970.86 is: 10,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118.17 : 30,177.56 = 6,970.86 : x
  2. Step 2: Convert to fraction form
    20,118.17/30,177.56 = 6,970.86/x
  3. Step 3: Cross multiply
    20,118.17x = 30,177.56 × 6,970.86
  4. Step 4: Simplify right side
    20,118.17x = 210,363,563.33
  5. Step 5: Solve for x
    x = 210,363,563.33/20,118.17
  6. Step 6: Final answer
    x = 10,456.40

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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.