Home / 35,605.20-53,412.60-12,238.80

Finding the Fourth Proportional to 35,605.20, 53,412.60 and 12,238.80

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Solution

The fourth proportional to 35,605.20, 53,412.60 and 12,238.80 is: 18,359.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,605.20 : 53,412.60 = 12,238.80 : x
  2. Step 2: Convert to fraction form
    35,605.20/53,412.60 = 12,238.80/x
  3. Step 3: Cross multiply
    35,605.20x = 53,412.60 × 12,238.80
  4. Step 4: Simplify right side
    35,605.20x = 653,706,128.88
  5. Step 5: Solve for x
    x = 653,706,128.88/35,605.20
  6. Step 6: Final answer
    x = 18,359.85

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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.