Home / 27,779.73-38,335.05-15,846.89

Finding the Fourth Proportional to 27,779.73, 38,335.05 and 15,846.89

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Solution

The fourth proportional to 27,779.73, 38,335.05 and 15,846.89 is: 21,868.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,779.73 : 38,335.05 = 15,846.89 : x
  2. Step 2: Convert to fraction form
    27,779.73/38,335.05 = 15,846.89/x
  3. Step 3: Cross multiply
    27,779.73x = 38,335.05 × 15,846.89
  4. Step 4: Simplify right side
    27,779.73x = 607,491,128.82
  5. Step 5: Solve for x
    x = 607,491,128.82/27,779.73
  6. Step 6: Final answer
    x = 21,868.14

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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.