Home / 42,842.44-64,279.05-19,148.02

Finding the Fourth Proportional to 42,842.44, 64,279.05 and 19,148.02

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Solution

The fourth proportional to 42,842.44, 64,279.05 and 19,148.02 is: 28,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,842.44 : 64,279.05 = 19,148.02 : x
  2. Step 2: Convert to fraction form
    42,842.44/64,279.05 = 19,148.02/x
  3. Step 3: Cross multiply
    42,842.44x = 64,279.05 × 19,148.02
  4. Step 4: Simplify right side
    42,842.44x = 1,230,816,534.98
  5. Step 5: Solve for x
    x = 1,230,816,534.98/42,842.44
  6. Step 6: Final answer
    x = 28,728.91

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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.