Home / 31,208.80-43,072.16-17,784.84

Finding the Fourth Proportional to 31,208.80, 43,072.16 and 17,784.84

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Solution

The fourth proportional to 31,208.80, 43,072.16 and 17,784.84 is: 24,545.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,208.80 : 43,072.16 = 17,784.84 : x
  2. Step 2: Convert to fraction form
    31,208.80/43,072.16 = 17,784.84/x
  3. Step 3: Cross multiply
    31,208.80x = 43,072.16 × 17,784.84
  4. Step 4: Simplify right side
    31,208.80x = 766,031,474.05
  5. Step 5: Solve for x
    x = 766,031,474.05/31,208.80
  6. Step 6: Final answer
    x = 24,545.37

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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.