Home / 21,996.52-30,351.78-14,045.80

Finding the Fourth Proportional to 21,996.52, 30,351.78 and 14,045.80

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Solution

The fourth proportional to 21,996.52, 30,351.78 and 14,045.80 is: 19,381.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,996.52 : 30,351.78 = 14,045.80 : x
  2. Step 2: Convert to fraction form
    21,996.52/30,351.78 = 14,045.80/x
  3. Step 3: Cross multiply
    21,996.52x = 30,351.78 × 14,045.80
  4. Step 4: Simplify right side
    21,996.52x = 426,315,031.52
  5. Step 5: Solve for x
    x = 426,315,031.52/21,996.52
  6. Step 6: Final answer
    x = 19,381.02

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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.