Home / 38,856.90-53,627.27-21,861.86

Finding the Fourth Proportional to 38,856.90, 53,627.27 and 21,861.86

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Solution

The fourth proportional to 38,856.90, 53,627.27 and 21,861.86 is: 30,172.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,856.90 : 53,627.27 = 21,861.86 : x
  2. Step 2: Convert to fraction form
    38,856.90/53,627.27 = 21,861.86/x
  3. Step 3: Cross multiply
    38,856.90x = 53,627.27 × 21,861.86
  4. Step 4: Simplify right side
    38,856.90x = 1,172,391,491.48
  5. Step 5: Solve for x
    x = 1,172,391,491.48/38,856.90
  6. Step 6: Final answer
    x = 30,172.03

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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.