Home / 27,779.68-38,335.69-15,032.59

Finding the Fourth Proportional to 27,779.68, 38,335.69 and 15,032.59

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Solution

The fourth proportional to 27,779.68, 38,335.69 and 15,032.59 is: 20,744.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,779.68 : 38,335.69 = 15,032.59 : x
  2. Step 2: Convert to fraction form
    27,779.68/38,335.69 = 15,032.59/x
  3. Step 3: Cross multiply
    27,779.68x = 38,335.69 × 15,032.59
  4. Step 4: Simplify right side
    27,779.68x = 576,284,710.14
  5. Step 5: Solve for x
    x = 576,284,710.14/27,779.68
  6. Step 6: Final answer
    x = 20,744.83

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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.