Home / 40,809.68-61,215.48-13,107.92

Finding the Fourth Proportional to 40,809.68, 61,215.48 and 13,107.92

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Solution

The fourth proportional to 40,809.68, 61,215.48 and 13,107.92 is: 19,662.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,809.68 : 61,215.48 = 13,107.92 : x
  2. Step 2: Convert to fraction form
    40,809.68/61,215.48 = 13,107.92/x
  3. Step 3: Cross multiply
    40,809.68x = 61,215.48 × 13,107.92
  4. Step 4: Simplify right side
    40,809.68x = 802,407,614.60
  5. Step 5: Solve for x
    x = 802,407,614.60/40,809.68
  6. Step 6: Final answer
    x = 19,662.19

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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.