Home / 22,720.64-31,352.32-16,755.60

Finding the Fourth Proportional to 22,720.64, 31,352.32 and 16,755.60

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Solution

The fourth proportional to 22,720.64, 31,352.32 and 16,755.60 is: 23,121.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,720.64 : 31,352.32 = 16,755.60 : x
  2. Step 2: Convert to fraction form
    22,720.64/31,352.32 = 16,755.60/x
  3. Step 3: Cross multiply
    22,720.64x = 31,352.32 × 16,755.60
  4. Step 4: Simplify right side
    22,720.64x = 525,326,932.99
  5. Step 5: Solve for x
    x = 525,326,932.99/22,720.64
  6. Step 6: Final answer
    x = 23,121.13

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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.