Home / 28,902.72-39,918.66-19,454.88

Finding the Fourth Proportional to 28,902.72, 39,918.66 and 19,454.88

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Solution

The fourth proportional to 28,902.72, 39,918.66 and 19,454.88 is: 26,869.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,902.72 : 39,918.66 = 19,454.88 : x
  2. Step 2: Convert to fraction form
    28,902.72/39,918.66 = 19,454.88/x
  3. Step 3: Cross multiply
    28,902.72x = 39,918.66 × 19,454.88
  4. Step 4: Simplify right side
    28,902.72x = 776,612,740.06
  5. Step 5: Solve for x
    x = 776,612,740.06/28,902.72
  6. Step 6: Final answer
    x = 26,869.88

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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.