Home / 47,719.84-65,859.42-28,856.92

Finding the Fourth Proportional to 47,719.84, 65,859.42 and 28,856.92

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Solution

The fourth proportional to 47,719.84, 65,859.42 and 28,856.92 is: 39,826.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,719.84 : 65,859.42 = 28,856.92 : x
  2. Step 2: Convert to fraction form
    47,719.84/65,859.42 = 28,856.92/x
  3. Step 3: Cross multiply
    47,719.84x = 65,859.42 × 28,856.92
  4. Step 4: Simplify right side
    47,719.84x = 1,900,500,014.19
  5. Step 5: Solve for x
    x = 1,900,500,014.19/47,719.84
  6. Step 6: Final answer
    x = 39,826.20

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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.