Home / 34,869.12-48,115.95-19,758.78

Finding the Fourth Proportional to 34,869.12, 48,115.95 and 19,758.78

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Solution

The fourth proportional to 34,869.12, 48,115.95 and 19,758.78 is: 27,265.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,869.12 : 48,115.95 = 19,758.78 : x
  2. Step 2: Convert to fraction form
    34,869.12/48,115.95 = 19,758.78/x
  3. Step 3: Cross multiply
    34,869.12x = 48,115.95 × 19,758.78
  4. Step 4: Simplify right side
    34,869.12x = 950,712,470.54
  5. Step 5: Solve for x
    x = 950,712,470.54/34,869.12
  6. Step 6: Final answer
    x = 27,265.17

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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.