Home / 20,726.82-28,485.14-19,414.62

Finding the Fourth Proportional to 20,726.82, 28,485.14 and 19,414.62

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Solution

The fourth proportional to 20,726.82, 28,485.14 and 19,414.62 is: 26,681.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.82 : 28,485.14 = 19,414.62 : x
  2. Step 2: Convert to fraction form
    20,726.82/28,485.14 = 19,414.62/x
  3. Step 3: Cross multiply
    20,726.82x = 28,485.14 × 19,414.62
  4. Step 4: Simplify right side
    20,726.82x = 553,028,071.67
  5. Step 5: Solve for x
    x = 553,028,071.67/20,726.82
  6. Step 6: Final answer
    x = 26,681.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.