Home / 40,920.36-61,380.59-12,842.56

Finding the Fourth Proportional to 40,920.36, 61,380.59 and 12,842.56

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Solution

The fourth proportional to 40,920.36, 61,380.59 and 12,842.56 is: 19,263.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,920.36 : 61,380.59 = 12,842.56 : x
  2. Step 2: Convert to fraction form
    40,920.36/61,380.59 = 12,842.56/x
  3. Step 3: Cross multiply
    40,920.36x = 61,380.59 × 12,842.56
  4. Step 4: Simplify right side
    40,920.36x = 788,283,845.70
  5. Step 5: Solve for x
    x = 788,283,845.70/40,920.36
  6. Step 6: Final answer
    x = 19,263.86

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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.