Home / 19,390.30-26,768.78-13,050.22

Finding the Fourth Proportional to 19,390.30, 26,768.78 and 13,050.22

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Solution

The fourth proportional to 19,390.30, 26,768.78 and 13,050.22 is: 18,016.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.30 : 26,768.78 = 13,050.22 : x
  2. Step 2: Convert to fraction form
    19,390.30/26,768.78 = 13,050.22/x
  3. Step 3: Cross multiply
    19,390.30x = 26,768.78 × 13,050.22
  4. Step 4: Simplify right side
    19,390.30x = 349,338,468.13
  5. Step 5: Solve for x
    x = 349,338,468.13/19,390.30
  6. Step 6: Final answer
    x = 18,016.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.