Home / 31,132.47-46,699.02-8,945.79

Finding the Fourth Proportional to 31,132.47, 46,699.02 and 8,945.79

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Solution

The fourth proportional to 31,132.47, 46,699.02 and 8,945.79 is: 13,418.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,132.47 : 46,699.02 = 8,945.79 : x
  2. Step 2: Convert to fraction form
    31,132.47/46,699.02 = 8,945.79/x
  3. Step 3: Cross multiply
    31,132.47x = 46,699.02 × 8,945.79
  4. Step 4: Simplify right side
    31,132.47x = 417,759,626.13
  5. Step 5: Solve for x
    x = 417,759,626.13/31,132.47
  6. Step 6: Final answer
    x = 13,418.78

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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.