Home / 28,784.88-39,734.28-22,499.28

Finding the Fourth Proportional to 28,784.88, 39,734.28 and 22,499.28

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Solution

The fourth proportional to 28,784.88, 39,734.28 and 22,499.28 is: 31,057.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,784.88 : 39,734.28 = 22,499.28 : x
  2. Step 2: Convert to fraction form
    28,784.88/39,734.28 = 22,499.28/x
  3. Step 3: Cross multiply
    28,784.88x = 39,734.28 × 22,499.28
  4. Step 4: Simplify right side
    28,784.88x = 893,992,691.32
  5. Step 5: Solve for x
    x = 893,992,691.32/28,784.88
  6. Step 6: Final answer
    x = 31,057.72

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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.