Home / 19,213.17-28,780.80-10,875.66

Finding the Fourth Proportional to 19,213.17, 28,780.80 and 10,875.66

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Solution

The fourth proportional to 19,213.17, 28,780.80 and 10,875.66 is: 16,291.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,213.17 : 28,780.80 = 10,875.66 : x
  2. Step 2: Convert to fraction form
    19,213.17/28,780.80 = 10,875.66/x
  3. Step 3: Cross multiply
    19,213.17x = 28,780.80 × 10,875.66
  4. Step 4: Simplify right side
    19,213.17x = 313,010,195.33
  5. Step 5: Solve for x
    x = 313,010,195.33/19,213.17
  6. Step 6: Final answer
    x = 16,291.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.