Home / 21,780.84-32,671.14-14,383.53

Finding the Fourth Proportional to 21,780.84, 32,671.14 and 14,383.53

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Solution

The fourth proportional to 21,780.84, 32,671.14 and 14,383.53 is: 21,575.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,780.84 : 32,671.14 = 14,383.53 : x
  2. Step 2: Convert to fraction form
    21,780.84/32,671.14 = 14,383.53/x
  3. Step 3: Cross multiply
    21,780.84x = 32,671.14 × 14,383.53
  4. Step 4: Simplify right side
    21,780.84x = 469,926,322.32
  5. Step 5: Solve for x
    x = 469,926,322.32/21,780.84
  6. Step 6: Final answer
    x = 21,575.22

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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.