Home / 20,482.02-30,722.82-9,385.56

Finding the Fourth Proportional to 20,482.02, 30,722.82 and 9,385.56

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Solution

The fourth proportional to 20,482.02, 30,722.82 and 9,385.56 is: 14,078.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.02 : 30,722.82 = 9,385.56 : x
  2. Step 2: Convert to fraction form
    20,482.02/30,722.82 = 9,385.56/x
  3. Step 3: Cross multiply
    20,482.02x = 30,722.82 × 9,385.56
  4. Step 4: Simplify right side
    20,482.02x = 288,350,870.48
  5. Step 5: Solve for x
    x = 288,350,870.48/20,482.02
  6. Step 6: Final answer
    x = 14,078.24

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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.