Home / 30,081.76-45,122.62-9,305.26

Finding the Fourth Proportional to 30,081.76, 45,122.62 and 9,305.26

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Solution

The fourth proportional to 30,081.76, 45,122.62 and 9,305.26 is: 13,957.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,081.76 : 45,122.62 = 9,305.26 : x
  2. Step 2: Convert to fraction form
    30,081.76/45,122.62 = 9,305.26/x
  3. Step 3: Cross multiply
    30,081.76x = 45,122.62 × 9,305.26
  4. Step 4: Simplify right side
    30,081.76x = 419,877,710.98
  5. Step 5: Solve for x
    x = 419,877,710.98/30,081.76
  6. Step 6: Final answer
    x = 13,957.88

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1.5x scale

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.