Home / 31,451.25-43,403.13-17,303.79

Finding the Fourth Proportional to 31,451.25, 43,403.13 and 17,303.79

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Solution

The fourth proportional to 31,451.25, 43,403.13 and 17,303.79 is: 23,879.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451.25 : 43,403.13 = 17,303.79 : x
  2. Step 2: Convert to fraction form
    31,451.25/43,403.13 = 17,303.79/x
  3. Step 3: Cross multiply
    31,451.25x = 43,403.13 × 17,303.79
  4. Step 4: Simplify right side
    31,451.25x = 751,038,646.86
  5. Step 5: Solve for x
    x = 751,038,646.86/31,451.25
  6. Step 6: Final answer
    x = 23,879.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.