Home / 20,025.90-30,038.92-7,542.57

Finding the Fourth Proportional to 20,025.90, 30,038.92 and 7,542.57

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Solution

The fourth proportional to 20,025.90, 30,038.92 and 7,542.57 is: 11,313.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.90 : 30,038.92 = 7,542.57 : x
  2. Step 2: Convert to fraction form
    20,025.90/30,038.92 = 7,542.57/x
  3. Step 3: Cross multiply
    20,025.90x = 30,038.92 × 7,542.57
  4. Step 4: Simplify right side
    20,025.90x = 226,570,750.61
  5. Step 5: Solve for x
    x = 226,570,750.61/20,025.90
  6. Step 6: Final answer
    x = 11,313.89

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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.