Home / 43,933.72-65,869.20-20,547.40

Finding the Fourth Proportional to 43,933.72, 65,869.20 and 20,547.40

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Solution

The fourth proportional to 43,933.72, 65,869.20 and 20,547.40 is: 30,806.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,933.72 : 65,869.20 = 20,547.40 : x
  2. Step 2: Convert to fraction form
    43,933.72/65,869.20 = 20,547.40/x
  3. Step 3: Cross multiply
    43,933.72x = 65,869.20 × 20,547.40
  4. Step 4: Simplify right side
    43,933.72x = 1,353,440,800.08
  5. Step 5: Solve for x
    x = 1,353,440,800.08/43,933.72
  6. Step 6: Final answer
    x = 30,806.42

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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.