Home / 31,141.44-42,974.95-16,994.28

Finding the Fourth Proportional to 31,141.44, 42,974.95 and 16,994.28

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Solution

The fourth proportional to 31,141.44, 42,974.95 and 16,994.28 is: 23,451.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,141.44 : 42,974.95 = 16,994.28 : x
  2. Step 2: Convert to fraction form
    31,141.44/42,974.95 = 16,994.28/x
  3. Step 3: Cross multiply
    31,141.44x = 42,974.95 × 16,994.28
  4. Step 4: Simplify right side
    31,141.44x = 730,328,333.29
  5. Step 5: Solve for x
    x = 730,328,333.29/31,141.44
  6. Step 6: Final answer
    x = 23,451.98

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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.