Home / 28,928.40-39,941.88-22,562.11

Finding the Fourth Proportional to 28,928.40, 39,941.88 and 22,562.11

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Solution

The fourth proportional to 28,928.40, 39,941.88 and 22,562.11 is: 31,151.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,928.40 : 39,941.88 = 22,562.11 : x
  2. Step 2: Convert to fraction form
    28,928.40/39,941.88 = 22,562.11/x
  3. Step 3: Cross multiply
    28,928.40x = 39,941.88 × 22,562.11
  4. Step 4: Simplify right side
    28,928.40x = 901,173,090.17
  5. Step 5: Solve for x
    x = 901,173,090.17/28,928.40
  6. Step 6: Final answer
    x = 31,151.85

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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.