Home / 27,995.07-38,633.19-15,419.82

Finding the Fourth Proportional to 27,995.07, 38,633.19 and 15,419.82

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Solution

The fourth proportional to 27,995.07, 38,633.19 and 15,419.82 is: 21,279.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,995.07 : 38,633.19 = 15,419.82 : x
  2. Step 2: Convert to fraction form
    27,995.07/38,633.19 = 15,419.82/x
  3. Step 3: Cross multiply
    27,995.07x = 38,633.19 × 15,419.82
  4. Step 4: Simplify right side
    27,995.07x = 595,716,835.83
  5. Step 5: Solve for x
    x = 595,716,835.83/27,995.07
  6. Step 6: Final answer
    x = 21,279.35

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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.