Home / 27,649.24-38,155.95-15,712.60

Finding the Fourth Proportional to 27,649.24, 38,155.95 and 15,712.60

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Solution

The fourth proportional to 27,649.24, 38,155.95 and 15,712.60 is: 21,683.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,649.24 : 38,155.95 = 15,712.60 : x
  2. Step 2: Convert to fraction form
    27,649.24/38,155.95 = 15,712.60/x
  3. Step 3: Cross multiply
    27,649.24x = 38,155.95 × 15,712.60
  4. Step 4: Simplify right side
    27,649.24x = 599,529,179.97
  5. Step 5: Solve for x
    x = 599,529,179.97/27,649.24
  6. Step 6: Final answer
    x = 21,683.39

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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.