Home / 39,800.24-54,924.56-21,897.12

Finding the Fourth Proportional to 39,800.24, 54,924.56 and 21,897.12

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Solution

The fourth proportional to 39,800.24, 54,924.56 and 21,897.12 is: 30,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,800.24 : 54,924.56 = 21,897.12 : x
  2. Step 2: Convert to fraction form
    39,800.24/54,924.56 = 21,897.12/x
  3. Step 3: Cross multiply
    39,800.24x = 54,924.56 × 21,897.12
  4. Step 4: Simplify right side
    39,800.24x = 1,202,689,681.27
  5. Step 5: Solve for x
    x = 1,202,689,681.27/39,800.24
  6. Step 6: Final answer
    x = 30,218.15

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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.