Home / 47,719.76-65,859.34-28,857.02

Finding the Fourth Proportional to 47,719.76, 65,859.34 and 28,857.02

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Solution

The fourth proportional to 47,719.76, 65,859.34 and 28,857.02 is: 39,826.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,719.76 : 65,859.34 = 28,857.02 : x
  2. Step 2: Convert to fraction form
    47,719.76/65,859.34 = 28,857.02/x
  3. Step 3: Cross multiply
    47,719.76x = 65,859.34 × 28,857.02
  4. Step 4: Simplify right side
    47,719.76x = 1,900,504,291.57
  5. Step 5: Solve for x
    x = 1,900,504,291.57/47,719.76
  6. Step 6: Final answer
    x = 39,826.36

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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.