Home / 31,875.39-47,828.07-15,240.47

Finding the Fourth Proportional to 31,875.39, 47,828.07 and 15,240.47

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Solution

The fourth proportional to 31,875.39, 47,828.07 and 15,240.47 is: 22,867.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,875.39 : 47,828.07 = 15,240.47 : x
  2. Step 2: Convert to fraction form
    31,875.39/47,828.07 = 15,240.47/x
  3. Step 3: Cross multiply
    31,875.39x = 47,828.07 × 15,240.47
  4. Step 4: Simplify right side
    31,875.39x = 728,922,026.85
  5. Step 5: Solve for x
    x = 728,922,026.85/31,875.39
  6. Step 6: Final answer
    x = 22,867.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.