Home / 28,253.25-38,989.38-15,506.65

Finding the Fourth Proportional to 28,253.25, 38,989.38 and 15,506.65

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Solution

The fourth proportional to 28,253.25, 38,989.38 and 15,506.65 is: 21,399.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,253.25 : 38,989.38 = 15,506.65 : x
  2. Step 2: Convert to fraction form
    28,253.25/38,989.38 = 15,506.65/x
  3. Step 3: Cross multiply
    28,253.25x = 38,989.38 × 15,506.65
  4. Step 4: Simplify right side
    28,253.25x = 604,594,669.38
  5. Step 5: Solve for x
    x = 604,594,669.38/28,253.25
  6. Step 6: Final answer
    x = 21,399.12

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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.