Home / 31,249.10-43,123.56-28,707.38

Finding the Fourth Proportional to 31,249.10, 43,123.56 and 28,707.38

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Solution

The fourth proportional to 31,249.10, 43,123.56 and 28,707.38 is: 39,616.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,249.10 : 43,123.56 = 28,707.38 : x
  2. Step 2: Convert to fraction form
    31,249.10/43,123.56 = 28,707.38/x
  3. Step 3: Cross multiply
    31,249.10x = 43,123.56 × 28,707.38
  4. Step 4: Simplify right side
    31,249.10x = 1,237,964,208.26
  5. Step 5: Solve for x
    x = 1,237,964,208.26/31,249.10
  6. Step 6: Final answer
    x = 39,616.00

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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.