Home / 28,877.75-43,316.43-11,780.57

Finding the Fourth Proportional to 28,877.75, 43,316.43 and 11,780.57

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Solution

The fourth proportional to 28,877.75, 43,316.43 and 11,780.57 is: 17,670.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877.75 : 43,316.43 = 11,780.57 : x
  2. Step 2: Convert to fraction form
    28,877.75/43,316.43 = 11,780.57/x
  3. Step 3: Cross multiply
    28,877.75x = 43,316.43 × 11,780.57
  4. Step 4: Simplify right side
    28,877.75x = 510,292,019.18
  5. Step 5: Solve for x
    x = 510,292,019.18/28,877.75
  6. Step 6: Final answer
    x = 17,670.77

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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.