Home / 21,762.48-30,032.22-12,331.02

Finding the Fourth Proportional to 21,762.48, 30,032.22 and 12,331.02

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Solution

The fourth proportional to 21,762.48, 30,032.22 and 12,331.02 is: 17,016.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762.48 : 30,032.22 = 12,331.02 : x
  2. Step 2: Convert to fraction form
    21,762.48/30,032.22 = 12,331.02/x
  3. Step 3: Cross multiply
    21,762.48x = 30,032.22 × 12,331.02
  4. Step 4: Simplify right side
    21,762.48x = 370,327,905.46
  5. Step 5: Solve for x
    x = 370,327,905.46/21,762.48
  6. Step 6: Final answer
    x = 17,016.81

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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.