Home / 21,720.90-32,570.34-10,610.94

Finding the Fourth Proportional to 21,720.90, 32,570.34 and 10,610.94

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Solution

The fourth proportional to 21,720.90, 32,570.34 and 10,610.94 is: 15,911.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,720.90 : 32,570.34 = 10,610.94 : x
  2. Step 2: Convert to fraction form
    21,720.90/32,570.34 = 10,610.94/x
  3. Step 3: Cross multiply
    21,720.90x = 32,570.34 × 10,610.94
  4. Step 4: Simplify right side
    21,720.90x = 345,601,923.52
  5. Step 5: Solve for x
    x = 345,601,923.52/21,720.90
  6. Step 6: Final answer
    x = 15,911.03

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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.