Home / 28,759.24-43,036.26-20,870.92

Finding the Fourth Proportional to 28,759.24, 43,036.26 and 20,870.92

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Solution

The fourth proportional to 28,759.24, 43,036.26 and 20,870.92 is: 31,231.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759.24 : 43,036.26 = 20,870.92 : x
  2. Step 2: Convert to fraction form
    28,759.24/43,036.26 = 20,870.92/x
  3. Step 3: Cross multiply
    28,759.24x = 43,036.26 × 20,870.92
  4. Step 4: Simplify right side
    28,759.24x = 898,206,339.56
  5. Step 5: Solve for x
    x = 898,206,339.56/28,759.24
  6. Step 6: Final answer
    x = 31,231.92

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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.