Home / 28,878.90-39,855.69-17,545.92

Finding the Fourth Proportional to 28,878.90, 39,855.69 and 17,545.92

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Solution

The fourth proportional to 28,878.90, 39,855.69 and 17,545.92 is: 24,215.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,878.90 : 39,855.69 = 17,545.92 : x
  2. Step 2: Convert to fraction form
    28,878.90/39,855.69 = 17,545.92/x
  3. Step 3: Cross multiply
    28,878.90x = 39,855.69 × 17,545.92
  4. Step 4: Simplify right side
    28,878.90x = 699,304,748.28
  5. Step 5: Solve for x
    x = 699,304,748.28/28,878.90
  6. Step 6: Final answer
    x = 24,215.08

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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.