Home / 21,958.84-30,306.06-12,529.24

Finding the Fourth Proportional to 21,958.84, 30,306.06 and 12,529.24

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Solution

The fourth proportional to 21,958.84, 30,306.06 and 12,529.24 is: 17,291.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,958.84 : 30,306.06 = 12,529.24 : x
  2. Step 2: Convert to fraction form
    21,958.84/30,306.06 = 12,529.24/x
  3. Step 3: Cross multiply
    21,958.84x = 30,306.06 × 12,529.24
  4. Step 4: Simplify right side
    21,958.84x = 379,711,899.19
  5. Step 5: Solve for x
    x = 379,711,899.19/21,958.84
  6. Step 6: Final answer
    x = 17,291.98

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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.