Home / 47,715.90-65,853.99-28,863.42

Finding the Fourth Proportional to 47,715.90, 65,853.99 and 28,863.42

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Solution

The fourth proportional to 47,715.90, 65,853.99 and 28,863.42 is: 39,835.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,715.90 : 65,853.99 = 28,863.42 : x
  2. Step 2: Convert to fraction form
    47,715.90/65,853.99 = 28,863.42/x
  3. Step 3: Cross multiply
    47,715.90x = 65,853.99 × 28,863.42
  4. Step 4: Simplify right side
    47,715.90x = 1,900,771,372.05
  5. Step 5: Solve for x
    x = 1,900,771,372.05/47,715.90
  6. Step 6: Final answer
    x = 39,835.18

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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.