Home / 34,685.28-47,862.09-19,578.78

Finding the Fourth Proportional to 34,685.28, 47,862.09 and 19,578.78

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Solution

The fourth proportional to 34,685.28, 47,862.09 and 19,578.78 is: 27,016.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,685.28 : 47,862.09 = 19,578.78 : x
  2. Step 2: Convert to fraction form
    34,685.28/47,862.09 = 19,578.78/x
  3. Step 3: Cross multiply
    34,685.28x = 47,862.09 × 19,578.78
  4. Step 4: Simplify right side
    34,685.28x = 937,081,330.45
  5. Step 5: Solve for x
    x = 937,081,330.45/34,685.28
  6. Step 6: Final answer
    x = 27,016.69

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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.