Home / 28,585.98-42,867.54-11,934.72

Finding the Fourth Proportional to 28,585.98, 42,867.54 and 11,934.72

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Solution

The fourth proportional to 28,585.98, 42,867.54 and 11,934.72 is: 17,897.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,585.98 : 42,867.54 = 11,934.72 : x
  2. Step 2: Convert to fraction form
    28,585.98/42,867.54 = 11,934.72/x
  3. Step 3: Cross multiply
    28,585.98x = 42,867.54 × 11,934.72
  4. Step 4: Simplify right side
    28,585.98x = 511,612,086.99
  5. Step 5: Solve for x
    x = 511,612,086.99/28,585.98
  6. Step 6: Final answer
    x = 17,897.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.