Home / 19,131.39-28,504.80-18,057.08

Finding the Fourth Proportional to 19,131.39, 28,504.80 and 18,057.08

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Solution

The fourth proportional to 19,131.39, 28,504.80 and 18,057.08 is: 26,904.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.39 : 28,504.80 = 18,057.08 : x
  2. Step 2: Convert to fraction form
    19,131.39/28,504.80 = 18,057.08/x
  3. Step 3: Cross multiply
    19,131.39x = 28,504.80 × 18,057.08
  4. Step 4: Simplify right side
    19,131.39x = 514,713,453.98
  5. Step 5: Solve for x
    x = 514,713,453.98/19,131.39
  6. Step 6: Final answer
    x = 26,904.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.