Home / 28,235.69-38,948.14-18,675.53

Finding the Fourth Proportional to 28,235.69, 38,948.14 and 18,675.53

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Solution

The fourth proportional to 28,235.69, 38,948.14 and 18,675.53 is: 25,760.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,235.69 : 38,948.14 = 18,675.53 : x
  2. Step 2: Convert to fraction form
    28,235.69/38,948.14 = 18,675.53/x
  3. Step 3: Cross multiply
    28,235.69x = 38,948.14 × 18,675.53
  4. Step 4: Simplify right side
    28,235.69x = 727,377,157.01
  5. Step 5: Solve for x
    x = 727,377,157.01/28,235.69
  6. Step 6: Final answer
    x = 25,760.91

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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.