Home / 43,110.80-64,658.70-11,938.76

Finding the Fourth Proportional to 43,110.80, 64,658.70 and 11,938.76

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Solution

The fourth proportional to 43,110.80, 64,658.70 and 11,938.76 is: 17,906.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,110.80 : 64,658.70 = 11,938.76 : x
  2. Step 2: Convert to fraction form
    43,110.80/64,658.70 = 11,938.76/x
  3. Step 3: Cross multiply
    43,110.80x = 64,658.70 × 11,938.76
  4. Step 4: Simplify right side
    43,110.80x = 771,944,701.21
  5. Step 5: Solve for x
    x = 771,944,701.21/43,110.80
  6. Step 6: Final answer
    x = 17,906.06

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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.