Home / 20,774.73-31,124.46-9,539.46

Finding the Fourth Proportional to 20,774.73, 31,124.46 and 9,539.46

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Solution

The fourth proportional to 20,774.73, 31,124.46 and 9,539.46 is: 14,291.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774.73 : 31,124.46 = 9,539.46 : x
  2. Step 2: Convert to fraction form
    20,774.73/31,124.46 = 9,539.46/x
  3. Step 3: Cross multiply
    20,774.73x = 31,124.46 × 9,539.46
  4. Step 4: Simplify right side
    20,774.73x = 296,910,541.19
  5. Step 5: Solve for x
    x = 296,910,541.19/20,774.73
  6. Step 6: Final answer
    x = 14,291.91

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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.