Home / 21,958.28-30,306.52-12,526.84

Finding the Fourth Proportional to 21,958.28, 30,306.52 and 12,526.84

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Solution

The fourth proportional to 21,958.28, 30,306.52 and 12,526.84 is: 17,289.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,958.28 : 30,306.52 = 12,526.84 : x
  2. Step 2: Convert to fraction form
    21,958.28/30,306.52 = 12,526.84/x
  3. Step 3: Cross multiply
    21,958.28x = 30,306.52 × 12,526.84
  4. Step 4: Simplify right side
    21,958.28x = 379,644,927.00
  5. Step 5: Solve for x
    x = 379,644,927.00/21,958.28
  6. Step 6: Final answer
    x = 17,289.37

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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.