Home / 42,996.36-59,355-28,680.02

Finding the Fourth Proportional to 42,996.36, 59,355 and 28,680.02

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Solution

The fourth proportional to 42,996.36, 59,355 and 28,680.02 is: 39,591.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,996.36 : 59,355 = 28,680.02 : x
  2. Step 2: Convert to fraction form
    42,996.36/59,355 = 28,680.02/x
  3. Step 3: Cross multiply
    42,996.36x = 59,355 × 28,680.02
  4. Step 4: Simplify right side
    42,996.36x = 1,702,302,290.33
  5. Step 5: Solve for x
    x = 1,702,302,290.33/42,996.36
  6. Step 6: Final answer
    x = 39,591.78

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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.