Home / 39,734.75-54,834.91-21,830.91

Finding the Fourth Proportional to 39,734.75, 54,834.91 and 21,830.91

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Solution

The fourth proportional to 39,734.75, 54,834.91 and 21,830.91 is: 30,127.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,734.75 : 54,834.91 = 21,830.91 : x
  2. Step 2: Convert to fraction form
    39,734.75/54,834.91 = 21,830.91/x
  3. Step 3: Cross multiply
    39,734.75x = 54,834.91 × 21,830.91
  4. Step 4: Simplify right side
    39,734.75x = 1,197,095,985.07
  5. Step 5: Solve for x
    x = 1,197,095,985.07/39,734.75
  6. Step 6: Final answer
    x = 30,127.18

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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.