Home / 21,788.22-32,688-6,207.06

Finding the Fourth Proportional to 21,788.22, 32,688 and 6,207.06

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Solution

The fourth proportional to 21,788.22, 32,688 and 6,207.06 is: 9,312.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,788.22 : 32,688 = 6,207.06 : x
  2. Step 2: Convert to fraction form
    21,788.22/32,688 = 6,207.06/x
  3. Step 3: Cross multiply
    21,788.22x = 32,688 × 6,207.06
  4. Step 4: Simplify right side
    21,788.22x = 202,896,377.28
  5. Step 5: Solve for x
    x = 202,896,377.28/21,788.22
  6. Step 6: Final answer
    x = 9,312.21

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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.