Home / 30,359.10-41,888.42-18,422.16

Finding the Fourth Proportional to 30,359.10, 41,888.42 and 18,422.16

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Solution

The fourth proportional to 30,359.10, 41,888.42 and 18,422.16 is: 25,418.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,359.10 : 41,888.42 = 18,422.16 : x
  2. Step 2: Convert to fraction form
    30,359.10/41,888.42 = 18,422.16/x
  3. Step 3: Cross multiply
    30,359.10x = 41,888.42 × 18,422.16
  4. Step 4: Simplify right side
    30,359.10x = 771,675,175.39
  5. Step 5: Solve for x
    x = 771,675,175.39/30,359.10
  6. Step 6: Final answer
    x = 25,418.25

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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.