Home / 19,940.13-29,877.39-15,806.70

Finding the Fourth Proportional to 19,940.13, 29,877.39 and 15,806.70

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Solution

The fourth proportional to 19,940.13, 29,877.39 and 15,806.70 is: 23,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.13 : 29,877.39 = 15,806.70 : x
  2. Step 2: Convert to fraction form
    19,940.13/29,877.39 = 15,806.70/x
  3. Step 3: Cross multiply
    19,940.13x = 29,877.39 × 15,806.70
  4. Step 4: Simplify right side
    19,940.13x = 472,262,940.51
  5. Step 5: Solve for x
    x = 472,262,940.51/19,940.13
  6. Step 6: Final answer
    x = 23,684.05

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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.