Home / 31,561.98-43,537.16-20,227.45

Finding the Fourth Proportional to 31,561.98, 43,537.16 and 20,227.45

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Solution

The fourth proportional to 31,561.98, 43,537.16 and 20,227.45 is: 27,902.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,561.98 : 43,537.16 = 20,227.45 : x
  2. Step 2: Convert to fraction form
    31,561.98/43,537.16 = 20,227.45/x
  3. Step 3: Cross multiply
    31,561.98x = 43,537.16 × 20,227.45
  4. Step 4: Simplify right side
    31,561.98x = 880,645,509.36
  5. Step 5: Solve for x
    x = 880,645,509.36/31,561.98
  6. Step 6: Final answer
    x = 27,902.10

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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.