Home / 21,610.24-32,391.60-8,460.16

Finding the Fourth Proportional to 21,610.24, 32,391.60 and 8,460.16

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Solution

The fourth proportional to 21,610.24, 32,391.60 and 8,460.16 is: 12,680.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,610.24 : 32,391.60 = 8,460.16 : x
  2. Step 2: Convert to fraction form
    21,610.24/32,391.60 = 8,460.16/x
  3. Step 3: Cross multiply
    21,610.24x = 32,391.60 × 8,460.16
  4. Step 4: Simplify right side
    21,610.24x = 274,038,118.66
  5. Step 5: Solve for x
    x = 274,038,118.66/21,610.24
  6. Step 6: Final answer
    x = 12,680.94

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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.