Home / 34,675.57-47,859.69-21,920.68

Finding the Fourth Proportional to 34,675.57, 47,859.69 and 21,920.68

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Solution

The fourth proportional to 34,675.57, 47,859.69 and 21,920.68 is: 30,255.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,675.57 : 47,859.69 = 21,920.68 : x
  2. Step 2: Convert to fraction form
    34,675.57/47,859.69 = 21,920.68/x
  3. Step 3: Cross multiply
    34,675.57x = 47,859.69 × 21,920.68
  4. Step 4: Simplify right side
    34,675.57x = 1,049,116,949.39
  5. Step 5: Solve for x
    x = 1,049,116,949.39/34,675.57
  6. Step 6: Final answer
    x = 30,255.22

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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.