Home / 19,273.12-28,905-8,180.08

Finding the Fourth Proportional to 19,273.12, 28,905 and 8,180.08

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Solution

The fourth proportional to 19,273.12, 28,905 and 8,180.08 is: 12,268.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,273.12 : 28,905 = 8,180.08 : x
  2. Step 2: Convert to fraction form
    19,273.12/28,905 = 8,180.08/x
  3. Step 3: Cross multiply
    19,273.12x = 28,905 × 8,180.08
  4. Step 4: Simplify right side
    19,273.12x = 236,445,212.40
  5. Step 5: Solve for x
    x = 236,445,212.40/19,273.12
  6. Step 6: Final answer
    x = 12,268.13

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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.