Home / 35,688.60-53,542.64-12,318.48

Finding the Fourth Proportional to 35,688.60, 53,542.64 and 12,318.48

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Solution

The fourth proportional to 35,688.60, 53,542.64 and 12,318.48 is: 18,481.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,688.60 : 53,542.64 = 12,318.48 : x
  2. Step 2: Convert to fraction form
    35,688.60/53,542.64 = 12,318.48/x
  3. Step 3: Cross multiply
    35,688.60x = 53,542.64 × 12,318.48
  4. Step 4: Simplify right side
    35,688.60x = 659,563,939.99
  5. Step 5: Solve for x
    x = 659,563,939.99/35,688.60
  6. Step 6: Final answer
    x = 18,481.08

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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.