Home / 27,826.93-38,393.68-15,887.89

Finding the Fourth Proportional to 27,826.93, 38,393.68 and 15,887.89

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Solution

The fourth proportional to 27,826.93, 38,393.68 and 15,887.89 is: 21,921.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,826.93 : 38,393.68 = 15,887.89 : x
  2. Step 2: Convert to fraction form
    27,826.93/38,393.68 = 15,887.89/x
  3. Step 3: Cross multiply
    27,826.93x = 38,393.68 × 15,887.89
  4. Step 4: Simplify right side
    27,826.93x = 609,994,564.54
  5. Step 5: Solve for x
    x = 609,994,564.54/27,826.93
  6. Step 6: Final answer
    x = 21,921.02

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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.