Home / 21,526-29,718.06-13,979.08

Finding the Fourth Proportional to 21,526, 29,718.06 and 13,979.08

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Solution

The fourth proportional to 21,526, 29,718.06 and 13,979.08 is: 19,299.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,526 : 29,718.06 = 13,979.08 : x
  2. Step 2: Convert to fraction form
    21,526/29,718.06 = 13,979.08/x
  3. Step 3: Cross multiply
    21,526x = 29,718.06 × 13,979.08
  4. Step 4: Simplify right side
    21,526x = 415,431,138.18
  5. Step 5: Solve for x
    x = 415,431,138.18/21,526
  6. Step 6: Final answer
    x = 19,299.04

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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.