Home / 31,319.26-43,214.49-18,570.08

Finding the Fourth Proportional to 31,319.26, 43,214.49 and 18,570.08

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Solution

The fourth proportional to 31,319.26, 43,214.49 and 18,570.08 is: 25,623.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,319.26 : 43,214.49 = 18,570.08 : x
  2. Step 2: Convert to fraction form
    31,319.26/43,214.49 = 18,570.08/x
  3. Step 3: Cross multiply
    31,319.26x = 43,214.49 × 18,570.08
  4. Step 4: Simplify right side
    31,319.26x = 802,496,644.50
  5. Step 5: Solve for x
    x = 802,496,644.50/31,319.26
  6. Step 6: Final answer
    x = 25,623.11

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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.