Home / 29,445.12-40,584.24-20,509.20

Finding the Fourth Proportional to 29,445.12, 40,584.24 and 20,509.20

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Solution

The fourth proportional to 29,445.12, 40,584.24 and 20,509.20 is: 28,267.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,445.12 : 40,584.24 = 20,509.20 : x
  2. Step 2: Convert to fraction form
    29,445.12/40,584.24 = 20,509.20/x
  3. Step 3: Cross multiply
    29,445.12x = 40,584.24 × 20,509.20
  4. Step 4: Simplify right side
    29,445.12x = 832,350,295.01
  5. Step 5: Solve for x
    x = 832,350,295.01/29,445.12
  6. Step 6: Final answer
    x = 28,267.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.