Home / 34,685.45-47,863.19-19,581.78

Finding the Fourth Proportional to 34,685.45, 47,863.19 and 19,581.78

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Solution

The fourth proportional to 34,685.45, 47,863.19 and 19,581.78 is: 27,021.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,685.45 : 47,863.19 = 19,581.78 : x
  2. Step 2: Convert to fraction form
    34,685.45/47,863.19 = 19,581.78/x
  3. Step 3: Cross multiply
    34,685.45x = 47,863.19 × 19,581.78
  4. Step 4: Simplify right side
    34,685.45x = 937,246,358.77
  5. Step 5: Solve for x
    x = 937,246,358.77/34,685.45
  6. Step 6: Final answer
    x = 27,021.32

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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.