Home / 43,109.68-64,657.14-11,937.64

Finding the Fourth Proportional to 43,109.68, 64,657.14 and 11,937.64

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Solution

The fourth proportional to 43,109.68, 64,657.14 and 11,937.64 is: 17,904.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,109.68 : 64,657.14 = 11,937.64 : x
  2. Step 2: Convert to fraction form
    43,109.68/64,657.14 = 11,937.64/x
  3. Step 3: Cross multiply
    43,109.68x = 64,657.14 × 11,937.64
  4. Step 4: Simplify right side
    43,109.68x = 771,853,660.75
  5. Step 5: Solve for x
    x = 771,853,660.75/43,109.68
  6. Step 6: Final answer
    x = 17,904.42

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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.