Home / 31,848.56-43,920.24-21,088.52

Finding the Fourth Proportional to 31,848.56, 43,920.24 and 21,088.52

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Solution

The fourth proportional to 31,848.56, 43,920.24 and 21,088.52 is: 29,081.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,848.56 : 43,920.24 = 21,088.52 : x
  2. Step 2: Convert to fraction form
    31,848.56/43,920.24 = 21,088.52/x
  3. Step 3: Cross multiply
    31,848.56x = 43,920.24 × 21,088.52
  4. Step 4: Simplify right side
    31,848.56x = 926,212,859.64
  5. Step 5: Solve for x
    x = 926,212,859.64/31,848.56
  6. Step 6: Final answer
    x = 29,081.78

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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.