Home / 30,246.12-41,728.56-18,305.10

Finding the Fourth Proportional to 30,246.12, 41,728.56 and 18,305.10

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Solution

The fourth proportional to 30,246.12, 41,728.56 and 18,305.10 is: 25,254.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,246.12 : 41,728.56 = 18,305.10 : x
  2. Step 2: Convert to fraction form
    30,246.12/41,728.56 = 18,305.10/x
  3. Step 3: Cross multiply
    30,246.12x = 41,728.56 × 18,305.10
  4. Step 4: Simplify right side
    30,246.12x = 763,845,463.66
  5. Step 5: Solve for x
    x = 763,845,463.66/30,246.12
  6. Step 6: Final answer
    x = 25,254.33

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1.5x scale

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.