Home / 21,600.10-32,403.63-9,121.99

Finding the Fourth Proportional to 21,600.10, 32,403.63 and 9,121.99

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Solution

The fourth proportional to 21,600.10, 32,403.63 and 9,121.99 is: 13,684.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,600.10 : 32,403.63 = 9,121.99 : x
  2. Step 2: Convert to fraction form
    21,600.10/32,403.63 = 9,121.99/x
  3. Step 3: Cross multiply
    21,600.10x = 32,403.63 × 9,121.99
  4. Step 4: Simplify right side
    21,600.10x = 295,585,588.82
  5. Step 5: Solve for x
    x = 295,585,588.82/21,600.10
  6. Step 6: Final answer
    x = 13,684.45

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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.