Home / 34,680.71-47,859.30-18,765.15

Finding the Fourth Proportional to 34,680.71, 47,859.30 and 18,765.15

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Solution

The fourth proportional to 34,680.71, 47,859.30 and 18,765.15 is: 25,895.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,680.71 : 47,859.30 = 18,765.15 : x
  2. Step 2: Convert to fraction form
    34,680.71/47,859.30 = 18,765.15/x
  3. Step 3: Cross multiply
    34,680.71x = 47,859.30 × 18,765.15
  4. Step 4: Simplify right side
    34,680.71x = 898,086,943.40
  5. Step 5: Solve for x
    x = 898,086,943.40/34,680.71
  6. Step 6: Final answer
    x = 25,895.87

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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.