Home / 30,543.40-45,800.66-11,832.20

Finding the Fourth Proportional to 30,543.40, 45,800.66 and 11,832.20

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Solution

The fourth proportional to 30,543.40, 45,800.66 and 11,832.20 is: 17,742.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,543.40 : 45,800.66 = 11,832.20 : x
  2. Step 2: Convert to fraction form
    30,543.40/45,800.66 = 11,832.20/x
  3. Step 3: Cross multiply
    30,543.40x = 45,800.66 × 11,832.20
  4. Step 4: Simplify right side
    30,543.40x = 541,922,569.25
  5. Step 5: Solve for x
    x = 541,922,569.25/30,543.40
  6. Step 6: Final answer
    x = 17,742.71

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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.