Home / 27,887.85-38,485.29-15,141.05

Finding the Fourth Proportional to 27,887.85, 38,485.29 and 15,141.05

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Solution

The fourth proportional to 27,887.85, 38,485.29 and 15,141.05 is: 20,894.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,887.85 : 38,485.29 = 15,141.05 : x
  2. Step 2: Convert to fraction form
    27,887.85/38,485.29 = 15,141.05/x
  3. Step 3: Cross multiply
    27,887.85x = 38,485.29 × 15,141.05
  4. Step 4: Simplify right side
    27,887.85x = 582,707,700.15
  5. Step 5: Solve for x
    x = 582,707,700.15/27,887.85
  6. Step 6: Final answer
    x = 20,894.68

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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.