Home / 20,559.38-30,820.56-7,402.50

Finding the Fourth Proportional to 20,559.38, 30,820.56 and 7,402.50

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Solution

The fourth proportional to 20,559.38, 30,820.56 and 7,402.50 is: 11,097.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.38 : 30,820.56 = 7,402.50 : x
  2. Step 2: Convert to fraction form
    20,559.38/30,820.56 = 7,402.50/x
  3. Step 3: Cross multiply
    20,559.38x = 30,820.56 × 7,402.50
  4. Step 4: Simplify right side
    20,559.38x = 228,149,195.40
  5. Step 5: Solve for x
    x = 228,149,195.40/20,559.38
  6. Step 6: Final answer
    x = 11,097.09

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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.