Home / 21,583.71-32,378.76-6,787.71

Finding the Fourth Proportional to 21,583.71, 32,378.76 and 6,787.71

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Solution

The fourth proportional to 21,583.71, 32,378.76 and 6,787.71 is: 10,182.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,583.71 : 32,378.76 = 6,787.71 : x
  2. Step 2: Convert to fraction form
    21,583.71/32,378.76 = 6,787.71/x
  3. Step 3: Cross multiply
    21,583.71x = 32,378.76 × 6,787.71
  4. Step 4: Simplify right side
    21,583.71x = 219,777,633.04
  5. Step 5: Solve for x
    x = 219,777,633.04/21,583.71
  6. Step 6: Final answer
    x = 10,182.57

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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.