Home / 21,638.18-32,457.27-5,222.18

Finding the Fourth Proportional to 21,638.18, 32,457.27 and 5,222.18

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Solution

The fourth proportional to 21,638.18, 32,457.27 and 5,222.18 is: 7,833.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,638.18 : 32,457.27 = 5,222.18 : x
  2. Step 2: Convert to fraction form
    21,638.18/32,457.27 = 5,222.18/x
  3. Step 3: Cross multiply
    21,638.18x = 32,457.27 × 5,222.18
  4. Step 4: Simplify right side
    21,638.18x = 169,497,706.25
  5. Step 5: Solve for x
    x = 169,497,706.25/21,638.18
  6. Step 6: Final answer
    x = 7,833.27

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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.