Home / 39,846.47-54,988.13-21,941.43

Finding the Fourth Proportional to 39,846.47, 54,988.13 and 21,941.43

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Solution

The fourth proportional to 39,846.47, 54,988.13 and 21,941.43 is: 30,279.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,846.47 : 54,988.13 = 21,941.43 : x
  2. Step 2: Convert to fraction form
    39,846.47/54,988.13 = 21,941.43/x
  3. Step 3: Cross multiply
    39,846.47x = 54,988.13 × 21,941.43
  4. Step 4: Simplify right side
    39,846.47x = 1,206,518,095.52
  5. Step 5: Solve for x
    x = 1,206,518,095.52/39,846.47
  6. Step 6: Final answer
    x = 30,279.18

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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.