Home / 19,521.12-26,943.12-13,235.52

Finding the Fourth Proportional to 19,521.12, 26,943.12 and 13,235.52

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Solution

The fourth proportional to 19,521.12, 26,943.12 and 13,235.52 is: 18,267.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,521.12 : 26,943.12 = 13,235.52 : x
  2. Step 2: Convert to fraction form
    19,521.12/26,943.12 = 13,235.52/x
  3. Step 3: Cross multiply
    19,521.12x = 26,943.12 × 13,235.52
  4. Step 4: Simplify right side
    19,521.12x = 356,606,203.62
  5. Step 5: Solve for x
    x = 356,606,203.62/19,521.12
  6. Step 6: Final answer
    x = 18,267.71

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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.