Home / 22,677.84-31,287.13-13,722.08

Finding the Fourth Proportional to 22,677.84, 31,287.13 and 13,722.08

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Solution

The fourth proportional to 22,677.84, 31,287.13 and 13,722.08 is: 18,931.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,677.84 : 31,287.13 = 13,722.08 : x
  2. Step 2: Convert to fraction form
    22,677.84/31,287.13 = 13,722.08/x
  3. Step 3: Cross multiply
    22,677.84x = 31,287.13 × 13,722.08
  4. Step 4: Simplify right side
    22,677.84x = 429,324,310.09
  5. Step 5: Solve for x
    x = 429,324,310.09/22,677.84
  6. Step 6: Final answer
    x = 18,931.45

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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.