Home / 31,392.45-43,208.91-28,401.93

Finding the Fourth Proportional to 31,392.45, 43,208.91 and 28,401.93

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Solution

The fourth proportional to 31,392.45, 43,208.91 and 28,401.93 is: 39,092.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,392.45 : 43,208.91 = 28,401.93 : x
  2. Step 2: Convert to fraction form
    31,392.45/43,208.91 = 28,401.93/x
  3. Step 3: Cross multiply
    31,392.45x = 43,208.91 × 28,401.93
  4. Step 4: Simplify right side
    31,392.45x = 1,227,216,437.20
  5. Step 5: Solve for x
    x = 1,227,216,437.20/31,392.45
  6. Step 6: Final answer
    x = 39,092.73

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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.