Home / 38,861.55-53,627.27-21,865.50

Finding the Fourth Proportional to 38,861.55, 53,627.27 and 21,865.50

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Solution

The fourth proportional to 38,861.55, 53,627.27 and 21,865.50 is: 30,173.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,861.55 : 53,627.27 = 21,865.50 : x
  2. Step 2: Convert to fraction form
    38,861.55/53,627.27 = 21,865.50/x
  3. Step 3: Cross multiply
    38,861.55x = 53,627.27 × 21,865.50
  4. Step 4: Simplify right side
    38,861.55x = 1,172,586,962.86
  5. Step 5: Solve for x
    x = 1,172,586,962.86/38,861.55
  6. Step 6: Final answer
    x = 30,173.45

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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.