Home / 21,812.84-32,730.10-8,664.92

Finding the Fourth Proportional to 21,812.84, 32,730.10 and 8,664.92

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Solution

The fourth proportional to 21,812.84, 32,730.10 and 8,664.92 is: 13,001.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,812.84 : 32,730.10 = 8,664.92 : x
  2. Step 2: Convert to fraction form
    21,812.84/32,730.10 = 8,664.92/x
  3. Step 3: Cross multiply
    21,812.84x = 32,730.10 × 8,664.92
  4. Step 4: Simplify right side
    21,812.84x = 283,603,698.09
  5. Step 5: Solve for x
    x = 283,603,698.09/21,812.84
  6. Step 6: Final answer
    x = 13,001.69

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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.