Home / 31,543.66-43,528.78-18,105.46

Finding the Fourth Proportional to 31,543.66, 43,528.78 and 18,105.46

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Solution

The fourth proportional to 31,543.66, 43,528.78 and 18,105.46 is: 24,984.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,543.66 : 43,528.78 = 18,105.46 : x
  2. Step 2: Convert to fraction form
    31,543.66/43,528.78 = 18,105.46/x
  3. Step 3: Cross multiply
    31,543.66x = 43,528.78 × 18,105.46
  4. Step 4: Simplify right side
    31,543.66x = 788,108,585.14
  5. Step 5: Solve for x
    x = 788,108,585.14/31,543.66
  6. Step 6: Final answer
    x = 24,984.69

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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.