Home / 21,376.84-32,076.78-20,601.16

Finding the Fourth Proportional to 21,376.84, 32,076.78 and 20,601.16

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Solution

The fourth proportional to 21,376.84, 32,076.78 and 20,601.16 is: 30,912.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.84 : 32,076.78 = 20,601.16 : x
  2. Step 2: Convert to fraction form
    21,376.84/32,076.78 = 20,601.16/x
  3. Step 3: Cross multiply
    21,376.84x = 32,076.78 × 20,601.16
  4. Step 4: Simplify right side
    21,376.84x = 660,818,877.06
  5. Step 5: Solve for x
    x = 660,818,877.06/21,376.84
  6. Step 6: Final answer
    x = 30,912.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.