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Finding the Fourth Proportional to 27,013.60, 40,455.60 and 21,829.60

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Solution

The fourth proportional to 27,013.60, 40,455.60 and 21,829.60 is: 32,692.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,013.60 : 40,455.60 = 21,829.60 : x
  2. Step 2: Convert to fraction form
    27,013.60/40,455.60 = 21,829.60/x
  3. Step 3: Cross multiply
    27,013.60x = 40,455.60 × 21,829.60
  4. Step 4: Simplify right side
    27,013.60x = 883,129,565.76
  5. Step 5: Solve for x
    x = 883,129,565.76/27,013.60
  6. Step 6: Final answer
    x = 32,692.04

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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.