Home / 31,221.95-43,086.45-17,075.12

Finding the Fourth Proportional to 31,221.95, 43,086.45 and 17,075.12

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Solution

The fourth proportional to 31,221.95, 43,086.45 and 17,075.12 is: 23,563.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,221.95 : 43,086.45 = 17,075.12 : x
  2. Step 2: Convert to fraction form
    31,221.95/43,086.45 = 17,075.12/x
  3. Step 3: Cross multiply
    31,221.95x = 43,086.45 × 17,075.12
  4. Step 4: Simplify right side
    31,221.95x = 735,706,304.12
  5. Step 5: Solve for x
    x = 735,706,304.12/31,221.95
  6. Step 6: Final answer
    x = 23,563.75

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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.