Home / 40,813.68-61,221.48-13,111.92

Finding the Fourth Proportional to 40,813.68, 61,221.48 and 13,111.92

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Solution

The fourth proportional to 40,813.68, 61,221.48 and 13,111.92 is: 19,668.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,813.68 : 61,221.48 = 13,111.92 : x
  2. Step 2: Convert to fraction form
    40,813.68/61,221.48 = 13,111.92/x
  3. Step 3: Cross multiply
    40,813.68x = 61,221.48 × 13,111.92
  4. Step 4: Simplify right side
    40,813.68x = 802,731,148.04
  5. Step 5: Solve for x
    x = 802,731,148.04/40,813.68
  6. Step 6: Final answer
    x = 19,668.19

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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.