Home / 39,888.62-55,044.04-21,983.56

Finding the Fourth Proportional to 39,888.62, 55,044.04 and 21,983.56

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Solution

The fourth proportional to 39,888.62, 55,044.04 and 21,983.56 is: 30,336.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,888.62 : 55,044.04 = 21,983.56 : x
  2. Step 2: Convert to fraction form
    39,888.62/55,044.04 = 21,983.56/x
  3. Step 3: Cross multiply
    39,888.62x = 55,044.04 × 21,983.56
  4. Step 4: Simplify right side
    39,888.62x = 1,210,063,955.98
  5. Step 5: Solve for x
    x = 1,210,063,955.98/39,888.62
  6. Step 6: Final answer
    x = 30,336.07

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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.