Home / 31,040.07-42,836.19-16,893.81

Finding the Fourth Proportional to 31,040.07, 42,836.19 and 16,893.81

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Solution

The fourth proportional to 31,040.07, 42,836.19 and 16,893.81 is: 23,313.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,040.07 : 42,836.19 = 16,893.81 : x
  2. Step 2: Convert to fraction form
    31,040.07/42,836.19 = 16,893.81/x
  3. Step 3: Cross multiply
    31,040.07x = 42,836.19 × 16,893.81
  4. Step 4: Simplify right side
    31,040.07x = 723,666,454.98
  5. Step 5: Solve for x
    x = 723,666,454.98/31,040.07
  6. Step 6: Final answer
    x = 23,313.94

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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.