Home / 39,734.66-54,834.84-21,830.12

Finding the Fourth Proportional to 39,734.66, 54,834.84 and 21,830.12

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Solution

The fourth proportional to 39,734.66, 54,834.84 and 21,830.12 is: 30,126.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,734.66 : 54,834.84 = 21,830.12 : x
  2. Step 2: Convert to fraction form
    39,734.66/54,834.84 = 21,830.12/x
  3. Step 3: Cross multiply
    39,734.66x = 54,834.84 × 21,830.12
  4. Step 4: Simplify right side
    39,734.66x = 1,197,050,863.21
  5. Step 5: Solve for x
    x = 1,197,050,863.21/39,734.66
  6. Step 6: Final answer
    x = 30,126.12

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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.