Home / 31,570.89-43,573.48-18,824.90

Finding the Fourth Proportional to 31,570.89, 43,573.48 and 18,824.90

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Solution

The fourth proportional to 31,570.89, 43,573.48 and 18,824.90 is: 25,981.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,570.89 : 43,573.48 = 18,824.90 : x
  2. Step 2: Convert to fraction form
    31,570.89/43,573.48 = 18,824.90/x
  3. Step 3: Cross multiply
    31,570.89x = 43,573.48 × 18,824.90
  4. Step 4: Simplify right side
    31,570.89x = 820,266,138.72
  5. Step 5: Solve for x
    x = 820,266,138.72/31,570.89
  6. Step 6: Final answer
    x = 25,981.72

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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.