Home / 19,862.32-27,399.72-13,489.24

Finding the Fourth Proportional to 19,862.32, 27,399.72 and 13,489.24

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Solution

The fourth proportional to 19,862.32, 27,399.72 and 13,489.24 is: 18,608.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,862.32 : 27,399.72 = 13,489.24 : x
  2. Step 2: Convert to fraction form
    19,862.32/27,399.72 = 13,489.24/x
  3. Step 3: Cross multiply
    19,862.32x = 27,399.72 × 13,489.24
  4. Step 4: Simplify right side
    19,862.32x = 369,601,399.01
  5. Step 5: Solve for x
    x = 369,601,399.01/19,862.32
  6. Step 6: Final answer
    x = 18,608.17

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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.