Home / 20,528.07-30,793.41-8,679.63

Finding the Fourth Proportional to 20,528.07, 30,793.41 and 8,679.63

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Solution

The fourth proportional to 20,528.07, 30,793.41 and 8,679.63 is: 13,020.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.07 : 30,793.41 = 8,679.63 : x
  2. Step 2: Convert to fraction form
    20,528.07/30,793.41 = 8,679.63/x
  3. Step 3: Cross multiply
    20,528.07x = 30,793.41 × 8,679.63
  4. Step 4: Simplify right side
    20,528.07x = 267,275,405.24
  5. Step 5: Solve for x
    x = 267,275,405.24/20,528.07
  6. Step 6: Final answer
    x = 13,020.00

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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.