Home / 43,856.10-65,774.70-13,872.69

Finding the Fourth Proportional to 43,856.10, 65,774.70 and 13,872.69

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Solution

The fourth proportional to 43,856.10, 65,774.70 and 13,872.69 is: 20,806.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,856.10 : 65,774.70 = 13,872.69 : x
  2. Step 2: Convert to fraction form
    43,856.10/65,774.70 = 13,872.69/x
  3. Step 3: Cross multiply
    43,856.10x = 65,774.70 × 13,872.69
  4. Step 4: Simplify right side
    43,856.10x = 912,472,022.94
  5. Step 5: Solve for x
    x = 912,472,022.94/43,856.10
  6. Step 6: Final answer
    x = 20,806.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.