Home / 21,280.34-29,365.62-12,327.26

Finding the Fourth Proportional to 21,280.34, 29,365.62 and 12,327.26

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Solution

The fourth proportional to 21,280.34, 29,365.62 and 12,327.26 is: 17,010.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,280.34 : 29,365.62 = 12,327.26 : x
  2. Step 2: Convert to fraction form
    21,280.34/29,365.62 = 12,327.26/x
  3. Step 3: Cross multiply
    21,280.34x = 29,365.62 × 12,327.26
  4. Step 4: Simplify right side
    21,280.34x = 361,997,632.80
  5. Step 5: Solve for x
    x = 361,997,632.80/21,280.34
  6. Step 6: Final answer
    x = 17,010.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.