Home / 27,103.38-37,406.70-15,779.58

Finding the Fourth Proportional to 27,103.38, 37,406.70 and 15,779.58

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Solution

The fourth proportional to 27,103.38, 37,406.70 and 15,779.58 is: 21,778.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,103.38 : 37,406.70 = 15,779.58 : x
  2. Step 2: Convert to fraction form
    27,103.38/37,406.70 = 15,779.58/x
  3. Step 3: Cross multiply
    27,103.38x = 37,406.70 × 15,779.58
  4. Step 4: Simplify right side
    27,103.38x = 590,262,015.19
  5. Step 5: Solve for x
    x = 590,262,015.19/27,103.38
  6. Step 6: Final answer
    x = 21,778.17

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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.