Home / 43,207.74-64,717.65-20,974.32

Finding the Fourth Proportional to 43,207.74, 64,717.65 and 20,974.32

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Solution

The fourth proportional to 43,207.74, 64,717.65 and 20,974.32 is: 31,415.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,207.74 : 64,717.65 = 20,974.32 : x
  2. Step 2: Convert to fraction form
    43,207.74/64,717.65 = 20,974.32/x
  3. Step 3: Cross multiply
    43,207.74x = 64,717.65 × 20,974.32
  4. Step 4: Simplify right side
    43,207.74x = 1,357,408,700.75
  5. Step 5: Solve for x
    x = 1,357,408,700.75/43,207.74
  6. Step 6: Final answer
    x = 31,415.87

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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.