Home / 30,931.48-46,399.80-9,874.56

Finding the Fourth Proportional to 30,931.48, 46,399.80 and 9,874.56

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Solution

The fourth proportional to 30,931.48, 46,399.80 and 9,874.56 is: 14,812.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,931.48 : 46,399.80 = 9,874.56 : x
  2. Step 2: Convert to fraction form
    30,931.48/46,399.80 = 9,874.56/x
  3. Step 3: Cross multiply
    30,931.48x = 46,399.80 × 9,874.56
  4. Step 4: Simplify right side
    30,931.48x = 458,177,609.09
  5. Step 5: Solve for x
    x = 458,177,609.09/30,931.48
  6. Step 6: Final answer
    x = 14,812.66

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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.