Home / 35,979.20-53,929.20-12,593.60

Finding the Fourth Proportional to 35,979.20, 53,929.20 and 12,593.60

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Solution

The fourth proportional to 35,979.20, 53,929.20 and 12,593.60 is: 18,876.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,979.20 : 53,929.20 = 12,593.60 : x
  2. Step 2: Convert to fraction form
    35,979.20/53,929.20 = 12,593.60/x
  3. Step 3: Cross multiply
    35,979.20x = 53,929.20 × 12,593.60
  4. Step 4: Simplify right side
    35,979.20x = 679,162,773.12
  5. Step 5: Solve for x
    x = 679,162,773.12/35,979.20
  6. Step 6: Final answer
    x = 18,876.54

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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.