Home / 20,937.63-31,550.43-17,321.10

Finding the Fourth Proportional to 20,937.63, 31,550.43 and 17,321.10

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Solution

The fourth proportional to 20,937.63, 31,550.43 and 17,321.10 is: 26,100.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,937.63 : 31,550.43 = 17,321.10 : x
  2. Step 2: Convert to fraction form
    20,937.63/31,550.43 = 17,321.10/x
  3. Step 3: Cross multiply
    20,937.63x = 31,550.43 × 17,321.10
  4. Step 4: Simplify right side
    20,937.63x = 546,488,153.07
  5. Step 5: Solve for x
    x = 546,488,153.07/20,937.63
  6. Step 6: Final answer
    x = 26,100.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.