Home / 28,248.65-38,982.14-18,177.51

Finding the Fourth Proportional to 28,248.65, 38,982.14 and 18,177.51

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Solution

The fourth proportional to 28,248.65, 38,982.14 and 18,177.51 is: 25,084.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.65 : 38,982.14 = 18,177.51 : x
  2. Step 2: Convert to fraction form
    28,248.65/38,982.14 = 18,177.51/x
  3. Step 3: Cross multiply
    28,248.65x = 38,982.14 × 18,177.51
  4. Step 4: Simplify right side
    28,248.65x = 708,598,239.67
  5. Step 5: Solve for x
    x = 708,598,239.67/28,248.65
  6. Step 6: Final answer
    x = 25,084.33

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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.