Home / 20,108.64-30,164.40-6,962.88

Finding the Fourth Proportional to 20,108.64, 30,164.40 and 6,962.88

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Solution

The fourth proportional to 20,108.64, 30,164.40 and 6,962.88 is: 10,444.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108.64 : 30,164.40 = 6,962.88 : x
  2. Step 2: Convert to fraction form
    20,108.64/30,164.40 = 6,962.88/x
  3. Step 3: Cross multiply
    20,108.64x = 30,164.40 × 6,962.88
  4. Step 4: Simplify right side
    20,108.64x = 210,031,097.47
  5. Step 5: Solve for x
    x = 210,031,097.47/20,108.64
  6. Step 6: Final answer
    x = 10,444.82

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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.