Home / 28,235.19-38,947.46-18,675.03

Finding the Fourth Proportional to 28,235.19, 38,947.46 and 18,675.03

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Solution

The fourth proportional to 28,235.19, 38,947.46 and 18,675.03 is: 25,760.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,235.19 : 38,947.46 = 18,675.03 : x
  2. Step 2: Convert to fraction form
    28,235.19/38,947.46 = 18,675.03/x
  3. Step 3: Cross multiply
    28,235.19x = 38,947.46 × 18,675.03
  4. Step 4: Simplify right side
    28,235.19x = 727,344,890.55
  5. Step 5: Solve for x
    x = 727,344,890.55/28,235.19
  6. Step 6: Final answer
    x = 25,760.23

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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.