Home / 30,348.77-41,888.00-19,719.95

Finding the Fourth Proportional to 30,348.77, 41,888.00 and 19,719.95

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Solution

The fourth proportional to 30,348.77, 41,888.00 and 19,719.95 is: 27,217.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348.77 : 41,888.00 = 19,719.95 : x
  2. Step 2: Convert to fraction form
    30,348.77/41,888.00 = 19,719.95/x
  3. Step 3: Cross multiply
    30,348.77x = 41,888.00 × 19,719.95
  4. Step 4: Simplify right side
    30,348.77x = 826,029,105.46
  5. Step 5: Solve for x
    x = 826,029,105.46/30,348.77
  6. Step 6: Final answer
    x = 27,217.88

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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.