Home / 35,623.20-53,439.60-12,256.80

Finding the Fourth Proportional to 35,623.20, 53,439.60 and 12,256.80

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Solution

The fourth proportional to 35,623.20, 53,439.60 and 12,256.80 is: 18,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,623.20 : 53,439.60 = 12,256.80 : x
  2. Step 2: Convert to fraction form
    35,623.20/53,439.60 = 12,256.80/x
  3. Step 3: Cross multiply
    35,623.20x = 53,439.60 × 12,256.80
  4. Step 4: Simplify right side
    35,623.20x = 654,998,489.28
  5. Step 5: Solve for x
    x = 654,998,489.28/35,623.20
  6. Step 6: Final answer
    x = 18,386.85

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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.