Home / 40,898.96-61,335.40-13,190.48

Finding the Fourth Proportional to 40,898.96, 61,335.40 and 13,190.48

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Solution

The fourth proportional to 40,898.96, 61,335.40 and 13,190.48 is: 19,781.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,898.96 : 61,335.40 = 13,190.48 : x
  2. Step 2: Convert to fraction form
    40,898.96/61,335.40 = 13,190.48/x
  3. Step 3: Cross multiply
    40,898.96x = 61,335.40 × 13,190.48
  4. Step 4: Simplify right side
    40,898.96x = 809,043,366.99
  5. Step 5: Solve for x
    x = 809,043,366.99/40,898.96
  6. Step 6: Final answer
    x = 19,781.51

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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.