Home / 28,920.33-39,962.01-22,562.84

Finding the Fourth Proportional to 28,920.33, 39,962.01 and 22,562.84

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Solution

The fourth proportional to 28,920.33, 39,962.01 and 22,562.84 is: 31,177.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,920.33 : 39,962.01 = 22,562.84 : x
  2. Step 2: Convert to fraction form
    28,920.33/39,962.01 = 22,562.84/x
  3. Step 3: Cross multiply
    28,920.33x = 39,962.01 × 22,562.84
  4. Step 4: Simplify right side
    28,920.33x = 901,656,237.90
  5. Step 5: Solve for x
    x = 901,656,237.90/28,920.33
  6. Step 6: Final answer
    x = 31,177.25

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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.