Home / 43,330.68-64,999.98-12,165.72

Finding the Fourth Proportional to 43,330.68, 64,999.98 and 12,165.72

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Solution

The fourth proportional to 43,330.68, 64,999.98 and 12,165.72 is: 18,249.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,330.68 : 64,999.98 = 12,165.72 : x
  2. Step 2: Convert to fraction form
    43,330.68/64,999.98 = 12,165.72/x
  3. Step 3: Cross multiply
    43,330.68x = 64,999.98 × 12,165.72
  4. Step 4: Simplify right side
    43,330.68x = 790,771,556.69
  5. Step 5: Solve for x
    x = 790,771,556.69/43,330.68
  6. Step 6: Final answer
    x = 18,249.69

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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.