Home / 27,458.07-37,890.66-15,520.71

Finding the Fourth Proportional to 27,458.07, 37,890.66 and 15,520.71

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Solution

The fourth proportional to 27,458.07, 37,890.66 and 15,520.71 is: 21,417.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,458.07 : 37,890.66 = 15,520.71 : x
  2. Step 2: Convert to fraction form
    27,458.07/37,890.66 = 15,520.71/x
  3. Step 3: Cross multiply
    27,458.07x = 37,890.66 × 15,520.71
  4. Step 4: Simplify right side
    27,458.07x = 588,089,945.57
  5. Step 5: Solve for x
    x = 588,089,945.57/27,458.07
  6. Step 6: Final answer
    x = 21,417.75

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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.