Home / 27,995.23-38,633.41-15,419.98

Finding the Fourth Proportional to 27,995.23, 38,633.41 and 15,419.98

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Solution

The fourth proportional to 27,995.23, 38,633.41 and 15,419.98 is: 21,279.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,995.23 : 38,633.41 = 15,419.98 : x
  2. Step 2: Convert to fraction form
    27,995.23/38,633.41 = 15,419.98/x
  3. Step 3: Cross multiply
    27,995.23x = 38,633.41 × 15,419.98
  4. Step 4: Simplify right side
    27,995.23x = 595,726,477.10
  5. Step 5: Solve for x
    x = 595,726,477.10/27,995.23
  6. Step 6: Final answer
    x = 21,279.57

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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.