Home / 20,184.12-30,276.35-5,392.88

Finding the Fourth Proportional to 20,184.12, 30,276.35 and 5,392.88

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Solution

The fourth proportional to 20,184.12, 30,276.35 and 5,392.88 is: 8,089.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,184.12 : 30,276.35 = 5,392.88 : x
  2. Step 2: Convert to fraction form
    20,184.12/30,276.35 = 5,392.88/x
  3. Step 3: Cross multiply
    20,184.12x = 30,276.35 × 5,392.88
  4. Step 4: Simplify right side
    20,184.12x = 163,276,677.80
  5. Step 5: Solve for x
    x = 163,276,677.80/20,184.12
  6. Step 6: Final answer
    x = 8,089.36

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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.