Home / 31,040.94-42,835.16-16,893.74

Finding the Fourth Proportional to 31,040.94, 42,835.16 and 16,893.74

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Solution

The fourth proportional to 31,040.94, 42,835.16 and 16,893.74 is: 23,312.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,040.94 : 42,835.16 = 16,893.74 : x
  2. Step 2: Convert to fraction form
    31,040.94/42,835.16 = 16,893.74/x
  3. Step 3: Cross multiply
    31,040.94x = 42,835.16 × 16,893.74
  4. Step 4: Simplify right side
    31,040.94x = 723,646,055.90
  5. Step 5: Solve for x
    x = 723,646,055.90/31,040.94
  6. Step 6: Final answer
    x = 23,312.63

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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.