Home / 31,718.74-43,768.74-18,106.96

Finding the Fourth Proportional to 31,718.74, 43,768.74 and 18,106.96

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Solution

The fourth proportional to 31,718.74, 43,768.74 and 18,106.96 is: 24,985.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,718.74 : 43,768.74 = 18,106.96 : x
  2. Step 2: Convert to fraction form
    31,718.74/43,768.74 = 18,106.96/x
  3. Step 3: Cross multiply
    31,718.74x = 43,768.74 × 18,106.96
  4. Step 4: Simplify right side
    31,718.74x = 792,518,824.43
  5. Step 5: Solve for x
    x = 792,518,824.43/31,718.74
  6. Step 6: Final answer
    x = 24,985.82

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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.