Home / 40,838.19-61,218.41-13,116.75

Finding the Fourth Proportional to 40,838.19, 61,218.41 and 13,116.75

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Solution

The fourth proportional to 40,838.19, 61,218.41 and 13,116.75 is: 19,662.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,838.19 : 61,218.41 = 13,116.75 : x
  2. Step 2: Convert to fraction form
    40,838.19/61,218.41 = 13,116.75/x
  3. Step 3: Cross multiply
    40,838.19x = 61,218.41 × 13,116.75
  4. Step 4: Simplify right side
    40,838.19x = 802,986,513.78
  5. Step 5: Solve for x
    x = 802,986,513.78/40,838.19
  6. Step 6: Final answer
    x = 19,662.64

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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.