Home / 30,118.38-45,180.09-10,397.10

Finding the Fourth Proportional to 30,118.38, 45,180.09 and 10,397.10

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Solution

The fourth proportional to 30,118.38, 45,180.09 and 10,397.10 is: 15,596.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,118.38 : 45,180.09 = 10,397.10 : x
  2. Step 2: Convert to fraction form
    30,118.38/45,180.09 = 10,397.10/x
  3. Step 3: Cross multiply
    30,118.38x = 45,180.09 × 10,397.10
  4. Step 4: Simplify right side
    30,118.38x = 469,741,913.74
  5. Step 5: Solve for x
    x = 469,741,913.74/30,118.38
  6. Step 6: Final answer
    x = 15,596.52

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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.