Home / 20,402.28-30,609.14-7,255.98

Finding the Fourth Proportional to 20,402.28, 30,609.14 and 7,255.98

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Solution

The fourth proportional to 20,402.28, 30,609.14 and 7,255.98 is: 10,886.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,402.28 : 30,609.14 = 7,255.98 : x
  2. Step 2: Convert to fraction form
    20,402.28/30,609.14 = 7,255.98/x
  3. Step 3: Cross multiply
    20,402.28x = 30,609.14 × 7,255.98
  4. Step 4: Simplify right side
    20,402.28x = 222,099,271.38
  5. Step 5: Solve for x
    x = 222,099,271.38/20,402.28
  6. Step 6: Final answer
    x = 10,886.00

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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.