Home / 28,943.12-39,897.96-22,644.56

Finding the Fourth Proportional to 28,943.12, 39,897.96 and 22,644.56

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Solution

The fourth proportional to 28,943.12, 39,897.96 and 22,644.56 is: 31,215.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,943.12 : 39,897.96 = 22,644.56 : x
  2. Step 2: Convert to fraction form
    28,943.12/39,897.96 = 22,644.56/x
  3. Step 3: Cross multiply
    28,943.12x = 39,897.96 × 22,644.56
  4. Step 4: Simplify right side
    28,943.12x = 903,471,749.10
  5. Step 5: Solve for x
    x = 903,471,749.10/28,943.12
  6. Step 6: Final answer
    x = 31,215.42

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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.