Home / 31,541.81-43,527.38-18,117.27

Finding the Fourth Proportional to 31,541.81, 43,527.38 and 18,117.27

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Solution

The fourth proportional to 31,541.81, 43,527.38 and 18,117.27 is: 25,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,541.81 : 43,527.38 = 18,117.27 : x
  2. Step 2: Convert to fraction form
    31,541.81/43,527.38 = 18,117.27/x
  3. Step 3: Cross multiply
    31,541.81x = 43,527.38 × 18,117.27
  4. Step 4: Simplify right side
    31,541.81x = 788,597,205.27
  5. Step 5: Solve for x
    x = 788,597,205.27/31,541.81
  6. Step 6: Final answer
    x = 25,001.65

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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.