Home / 31,277.27-43,162.65-17,130.11

Finding the Fourth Proportional to 31,277.27, 43,162.65 and 17,130.11

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Solution

The fourth proportional to 31,277.27, 43,162.65 and 17,130.11 is: 23,639.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,277.27 : 43,162.65 = 17,130.11 : x
  2. Step 2: Convert to fraction form
    31,277.27/43,162.65 = 17,130.11/x
  3. Step 3: Cross multiply
    31,277.27x = 43,162.65 × 17,130.11
  4. Step 4: Simplify right side
    31,277.27x = 739,380,942.39
  5. Step 5: Solve for x
    x = 739,380,942.39/31,277.27
  6. Step 6: Final answer
    x = 23,639.56

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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.