Home / 21,965.16-30,304.26-15,249

Finding the Fourth Proportional to 21,965.16, 30,304.26 and 15,249

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Solution

The fourth proportional to 21,965.16, 30,304.26 and 15,249 is: 21,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,965.16 : 30,304.26 = 15,249 : x
  2. Step 2: Convert to fraction form
    21,965.16/30,304.26 = 15,249/x
  3. Step 3: Cross multiply
    21,965.16x = 30,304.26 × 15,249
  4. Step 4: Simplify right side
    21,965.16x = 462,109,660.74
  5. Step 5: Solve for x
    x = 462,109,660.74/21,965.16
  6. Step 6: Final answer
    x = 21,038.30

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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.