Home / 21,932.04-30,264.36-12,371.40

Finding the Fourth Proportional to 21,932.04, 30,264.36 and 12,371.40

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Solution

The fourth proportional to 21,932.04, 30,264.36 and 12,371.40 is: 17,071.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,932.04 : 30,264.36 = 12,371.40 : x
  2. Step 2: Convert to fraction form
    21,932.04/30,264.36 = 12,371.40/x
  3. Step 3: Cross multiply
    21,932.04x = 30,264.36 × 12,371.40
  4. Step 4: Simplify right side
    21,932.04x = 374,412,503.30
  5. Step 5: Solve for x
    x = 374,412,503.30/21,932.04
  6. Step 6: Final answer
    x = 17,071.49

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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.