Home / 27,649.07-38,155.60-15,073.82

Finding the Fourth Proportional to 27,649.07, 38,155.60 and 15,073.82

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Solution

The fourth proportional to 27,649.07, 38,155.60 and 15,073.82 is: 20,801.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,649.07 : 38,155.60 = 15,073.82 : x
  2. Step 2: Convert to fraction form
    27,649.07/38,155.60 = 15,073.82/x
  3. Step 3: Cross multiply
    27,649.07x = 38,155.60 × 15,073.82
  4. Step 4: Simplify right side
    27,649.07x = 575,150,646.39
  5. Step 5: Solve for x
    x = 575,150,646.39/27,649.07
  6. Step 6: Final answer
    x = 20,801.81

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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.