Home / 22,713.80-33,897.98-21,209.78

Finding the Fourth Proportional to 22,713.80, 33,897.98 and 21,209.78

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Solution

The fourth proportional to 22,713.80, 33,897.98 and 21,209.78 is: 31,653.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,713.80 : 33,897.98 = 21,209.78 : x
  2. Step 2: Convert to fraction form
    22,713.80/33,897.98 = 21,209.78/x
  3. Step 3: Cross multiply
    22,713.80x = 33,897.98 × 21,209.78
  4. Step 4: Simplify right side
    22,713.80x = 718,968,836.01
  5. Step 5: Solve for x
    x = 718,968,836.01/22,713.80
  6. Step 6: Final answer
    x = 31,653.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.