Home / 20,437.40-30,650.34-8,763.32

Finding the Fourth Proportional to 20,437.40, 30,650.34 and 8,763.32

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Solution

The fourth proportional to 20,437.40, 30,650.34 and 8,763.32 is: 13,142.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.40 : 30,650.34 = 8,763.32 : x
  2. Step 2: Convert to fraction form
    20,437.40/30,650.34 = 8,763.32/x
  3. Step 3: Cross multiply
    20,437.40x = 30,650.34 × 8,763.32
  4. Step 4: Simplify right side
    20,437.40x = 268,598,737.53
  5. Step 5: Solve for x
    x = 268,598,737.53/20,437.40
  6. Step 6: Final answer
    x = 13,142.51

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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.