Home / 43,931.57-65,866.03-20,545.25

Finding the Fourth Proportional to 43,931.57, 65,866.03 and 20,545.25

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Solution

The fourth proportional to 43,931.57, 65,866.03 and 20,545.25 is: 30,803.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,931.57 : 65,866.03 = 20,545.25 : x
  2. Step 2: Convert to fraction form
    43,931.57/65,866.03 = 20,545.25/x
  3. Step 3: Cross multiply
    43,931.57x = 65,866.03 × 20,545.25
  4. Step 4: Simplify right side
    43,931.57x = 1,353,233,672.16
  5. Step 5: Solve for x
    x = 1,353,233,672.16/43,931.57
  6. Step 6: Final answer
    x = 30,803.22

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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.