Home / 20,155.90-30,233.85-14,907.10

Finding the Fourth Proportional to 20,155.90, 30,233.85 and 14,907.10

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Solution

The fourth proportional to 20,155.90, 30,233.85 and 14,907.10 is: 22,360.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.90 : 30,233.85 = 14,907.10 : x
  2. Step 2: Convert to fraction form
    20,155.90/30,233.85 = 14,907.10/x
  3. Step 3: Cross multiply
    20,155.90x = 30,233.85 × 14,907.10
  4. Step 4: Simplify right side
    20,155.90x = 450,699,025.34
  5. Step 5: Solve for x
    x = 450,699,025.34/20,155.90
  6. Step 6: Final answer
    x = 22,360.65

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Similar ratio
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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.