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Finding the Fourth Proportional to 21,761.71, 32,642.57 and 14,364.44

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Solution

The fourth proportional to 21,761.71, 32,642.57 and 14,364.44 is: 21,546.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,761.71 : 32,642.57 = 14,364.44 : x
  2. Step 2: Convert to fraction form
    21,761.71/32,642.57 = 14,364.44/x
  3. Step 3: Cross multiply
    21,761.71x = 32,642.57 × 14,364.44
  4. Step 4: Simplify right side
    21,761.71x = 468,892,166.39
  5. Step 5: Solve for x
    x = 468,892,166.39/21,761.71
  6. Step 6: Final answer
    x = 21,546.66

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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.