Home / 21,803.04-30,087.36-12,371.04

Finding the Fourth Proportional to 21,803.04, 30,087.36 and 12,371.04

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Solution

The fourth proportional to 21,803.04, 30,087.36 and 12,371.04 is: 17,071.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,803.04 : 30,087.36 = 12,371.04 : x
  2. Step 2: Convert to fraction form
    21,803.04/30,087.36 = 12,371.04/x
  3. Step 3: Cross multiply
    21,803.04x = 30,087.36 × 12,371.04
  4. Step 4: Simplify right side
    21,803.04x = 372,211,934.05
  5. Step 5: Solve for x
    x = 372,211,934.05/21,803.04
  6. Step 6: Final answer
    x = 17,071.56

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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.