Home / 20,058.32-27,681.35-11,105.83

Finding the Fourth Proportional to 20,058.32, 27,681.35 and 11,105.83

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Solution

The fourth proportional to 20,058.32, 27,681.35 and 11,105.83 is: 15,326.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,058.32 : 27,681.35 = 11,105.83 : x
  2. Step 2: Convert to fraction form
    20,058.32/27,681.35 = 11,105.83/x
  3. Step 3: Cross multiply
    20,058.32x = 27,681.35 × 11,105.83
  4. Step 4: Simplify right side
    20,058.32x = 307,424,253.11
  5. Step 5: Solve for x
    x = 307,424,253.11/20,058.32
  6. Step 6: Final answer
    x = 15,326.52

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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.