Home / 23,011.84-31,764.82-20,209.07

Finding the Fourth Proportional to 23,011.84, 31,764.82 and 20,209.07

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Solution

The fourth proportional to 23,011.84, 31,764.82 and 20,209.07 is: 27,895.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,011.84 : 31,764.82 = 20,209.07 : x
  2. Step 2: Convert to fraction form
    23,011.84/31,764.82 = 20,209.07/x
  3. Step 3: Cross multiply
    23,011.84x = 31,764.82 × 20,209.07
  4. Step 4: Simplify right side
    23,011.84x = 641,937,211.05
  5. Step 5: Solve for x
    x = 641,937,211.05/23,011.84
  6. Step 6: Final answer
    x = 27,895.95

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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.