Home / 19,681.82-27,159.92-10,729.32

Finding the Fourth Proportional to 19,681.82, 27,159.92 and 10,729.32

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Solution

The fourth proportional to 19,681.82, 27,159.92 and 10,729.32 is: 14,805.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.82 : 27,159.92 = 10,729.32 : x
  2. Step 2: Convert to fraction form
    19,681.82/27,159.92 = 10,729.32/x
  3. Step 3: Cross multiply
    19,681.82x = 27,159.92 × 10,729.32
  4. Step 4: Simplify right side
    19,681.82x = 291,407,472.85
  5. Step 5: Solve for x
    x = 291,407,472.85/19,681.82
  6. Step 6: Final answer
    x = 14,805.92

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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.