Home / 31,578.08-43,578.11-17,430.93

Finding the Fourth Proportional to 31,578.08, 43,578.11 and 17,430.93

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Solution

The fourth proportional to 31,578.08, 43,578.11 and 17,430.93 is: 24,054.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,578.08 : 43,578.11 = 17,430.93 : x
  2. Step 2: Convert to fraction form
    31,578.08/43,578.11 = 17,430.93/x
  3. Step 3: Cross multiply
    31,578.08x = 43,578.11 × 17,430.93
  4. Step 4: Simplify right side
    31,578.08x = 759,606,897.79
  5. Step 5: Solve for x
    x = 759,606,897.79/31,578.08
  6. Step 6: Final answer
    x = 24,054.88

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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.