Home / 31,248.54-43,100.43-19,906.86

Finding the Fourth Proportional to 31,248.54, 43,100.43 and 19,906.86

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Solution

The fourth proportional to 31,248.54, 43,100.43 and 19,906.86 is: 27,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,248.54 : 43,100.43 = 19,906.86 : x
  2. Step 2: Convert to fraction form
    31,248.54/43,100.43 = 19,906.86/x
  3. Step 3: Cross multiply
    31,248.54x = 43,100.43 × 19,906.86
  4. Step 4: Simplify right side
    31,248.54x = 857,994,225.95
  5. Step 5: Solve for x
    x = 857,994,225.95/31,248.54
  6. Step 6: Final answer
    x = 27,457.10

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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.