Home / 31,692.63-43,732.80-18,943.29

Finding the Fourth Proportional to 31,692.63, 43,732.80 and 18,943.29

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Solution

The fourth proportional to 31,692.63, 43,732.80 and 18,943.29 is: 26,139.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,692.63 : 43,732.80 = 18,943.29 : x
  2. Step 2: Convert to fraction form
    31,692.63/43,732.80 = 18,943.29/x
  3. Step 3: Cross multiply
    31,692.63x = 43,732.80 × 18,943.29
  4. Step 4: Simplify right side
    31,692.63x = 828,443,112.91
  5. Step 5: Solve for x
    x = 828,443,112.91/31,692.63
  6. Step 6: Final answer
    x = 26,139.93

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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.