Home / 21,732.84-32,616.54-18,648.90

Finding the Fourth Proportional to 21,732.84, 32,616.54 and 18,648.90

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Solution

The fourth proportional to 21,732.84, 32,616.54 and 18,648.90 is: 27,988.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,732.84 : 32,616.54 = 18,648.90 : x
  2. Step 2: Convert to fraction form
    21,732.84/32,616.54 = 18,648.90/x
  3. Step 3: Cross multiply
    21,732.84x = 32,616.54 × 18,648.90
  4. Step 4: Simplify right side
    21,732.84x = 608,262,592.81
  5. Step 5: Solve for x
    x = 608,262,592.81/21,732.84
  6. Step 6: Final answer
    x = 27,988.18

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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.