Home / 30,118.01-41,563.13-16,689.42

Finding the Fourth Proportional to 30,118.01, 41,563.13 and 16,689.42

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Solution

The fourth proportional to 30,118.01, 41,563.13 and 16,689.42 is: 23,031.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,118.01 : 41,563.13 = 16,689.42 : x
  2. Step 2: Convert to fraction form
    30,118.01/41,563.13 = 16,689.42/x
  3. Step 3: Cross multiply
    30,118.01x = 41,563.13 × 16,689.42
  4. Step 4: Simplify right side
    30,118.01x = 693,664,449.64
  5. Step 5: Solve for x
    x = 693,664,449.64/30,118.01
  6. Step 6: Final answer
    x = 23,031.55

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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.