Home / 43,812.85-65,719.28-21,629.65

Finding the Fourth Proportional to 43,812.85, 65,719.28 and 21,629.65

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Solution

The fourth proportional to 43,812.85, 65,719.28 and 21,629.65 is: 32,444.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,812.85 : 65,719.28 = 21,629.65 : x
  2. Step 2: Convert to fraction form
    43,812.85/65,719.28 = 21,629.65/x
  3. Step 3: Cross multiply
    43,812.85x = 65,719.28 × 21,629.65
  4. Step 4: Simplify right side
    43,812.85x = 1,421,484,916.50
  5. Step 5: Solve for x
    x = 1,421,484,916.50/43,812.85
  6. Step 6: Final answer
    x = 32,444.48

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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.