Home / 21,995.25-30,343.98-13,037.95

Finding the Fourth Proportional to 21,995.25, 30,343.98 and 13,037.95

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Solution

The fourth proportional to 21,995.25, 30,343.98 and 13,037.95 is: 17,986.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.25 : 30,343.98 = 13,037.95 : x
  2. Step 2: Convert to fraction form
    21,995.25/30,343.98 = 13,037.95/x
  3. Step 3: Cross multiply
    21,995.25x = 30,343.98 × 13,037.95
  4. Step 4: Simplify right side
    21,995.25x = 395,623,294.04
  5. Step 5: Solve for x
    x = 395,623,294.04/21,995.25
  6. Step 6: Final answer
    x = 17,986.76

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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.