Home / 20,672.24-31,012.08-7,543.04

Finding the Fourth Proportional to 20,672.24, 31,012.08 and 7,543.04

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Solution

The fourth proportional to 20,672.24, 31,012.08 and 7,543.04 is: 11,315.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672.24 : 31,012.08 = 7,543.04 : x
  2. Step 2: Convert to fraction form
    20,672.24/31,012.08 = 7,543.04/x
  3. Step 3: Cross multiply
    20,672.24x = 31,012.08 × 7,543.04
  4. Step 4: Simplify right side
    20,672.24x = 233,925,359.92
  5. Step 5: Solve for x
    x = 233,925,359.92/20,672.24
  6. Step 6: Final answer
    x = 11,315.92

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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.