Home / 20,930.59-31,539.77-17,313.84

Finding the Fourth Proportional to 20,930.59, 31,539.77 and 17,313.84

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Solution

The fourth proportional to 20,930.59, 31,539.77 and 17,313.84 is: 26,089.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,930.59 : 31,539.77 = 17,313.84 : x
  2. Step 2: Convert to fraction form
    20,930.59/31,539.77 = 17,313.84/x
  3. Step 3: Cross multiply
    20,930.59x = 31,539.77 × 17,313.84
  4. Step 4: Simplify right side
    20,930.59x = 546,074,531.42
  5. Step 5: Solve for x
    x = 546,074,531.42/20,930.59
  6. Step 6: Final answer
    x = 26,089.78

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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.