Home / 34,888.12-48,147.11-19,780.66

Finding the Fourth Proportional to 34,888.12, 48,147.11 and 19,780.66

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Solution

The fourth proportional to 34,888.12, 48,147.11 and 19,780.66 is: 27,298.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,888.12 : 48,147.11 = 19,780.66 : x
  2. Step 2: Convert to fraction form
    34,888.12/48,147.11 = 19,780.66/x
  3. Step 3: Cross multiply
    34,888.12x = 48,147.11 × 19,780.66
  4. Step 4: Simplify right side
    34,888.12x = 952,381,377.52
  5. Step 5: Solve for x
    x = 952,381,377.52/34,888.12
  6. Step 6: Final answer
    x = 27,298.16

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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.