Home / 27,315.96-37,693.14-15,379.08

Finding the Fourth Proportional to 27,315.96, 37,693.14 and 15,379.08

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Solution

The fourth proportional to 27,315.96, 37,693.14 and 15,379.08 is: 21,221.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,315.96 : 37,693.14 = 15,379.08 : x
  2. Step 2: Convert to fraction form
    27,315.96/37,693.14 = 15,379.08/x
  3. Step 3: Cross multiply
    27,315.96x = 37,693.14 × 15,379.08
  4. Step 4: Simplify right side
    27,315.96x = 579,685,815.51
  5. Step 5: Solve for x
    x = 579,685,815.51/27,315.96
  6. Step 6: Final answer
    x = 21,221.51

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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.