Home / 19,681.79-27,160.72-10,729.26

Finding the Fourth Proportional to 19,681.79, 27,160.72 and 10,729.26

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Solution

The fourth proportional to 19,681.79, 27,160.72 and 10,729.26 is: 14,806.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.79 : 27,160.72 = 10,729.26 : x
  2. Step 2: Convert to fraction form
    19,681.79/27,160.72 = 10,729.26/x
  3. Step 3: Cross multiply
    19,681.79x = 27,160.72 × 10,729.26
  4. Step 4: Simplify right side
    19,681.79x = 291,414,399.84
  5. Step 5: Solve for x
    x = 291,414,399.84/19,681.79
  6. Step 6: Final answer
    x = 14,806.30

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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.