Home / 31,583.61-43,581.66-18,837.50

Finding the Fourth Proportional to 31,583.61, 43,581.66 and 18,837.50

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Solution

The fourth proportional to 31,583.61, 43,581.66 and 18,837.50 is: 25,993.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,583.61 : 43,581.66 = 18,837.50 : x
  2. Step 2: Convert to fraction form
    31,583.61/43,581.66 = 18,837.50/x
  3. Step 3: Cross multiply
    31,583.61x = 43,581.66 × 18,837.50
  4. Step 4: Simplify right side
    31,583.61x = 820,969,302.34
  5. Step 5: Solve for x
    x = 820,969,302.34/31,583.61
  6. Step 6: Final answer
    x = 25,993.52

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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.