Home / 21,641.90-32,420.66-14,223.96

Finding the Fourth Proportional to 21,641.90, 32,420.66 and 14,223.96

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Solution

The fourth proportional to 21,641.90, 32,420.66 and 14,223.96 is: 21,308.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,641.90 : 32,420.66 = 14,223.96 : x
  2. Step 2: Convert to fraction form
    21,641.90/32,420.66 = 14,223.96/x
  3. Step 3: Cross multiply
    21,641.90x = 32,420.66 × 14,223.96
  4. Step 4: Simplify right side
    21,641.90x = 461,150,099.89
  5. Step 5: Solve for x
    x = 461,150,099.89/21,641.90
  6. Step 6: Final answer
    x = 21,308.21

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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.