Home / 31,521.28-43,491.84-17,906.32

Finding the Fourth Proportional to 31,521.28, 43,491.84 and 17,906.32

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Solution

The fourth proportional to 31,521.28, 43,491.84 and 17,906.32 is: 24,706.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,521.28 : 43,491.84 = 17,906.32 : x
  2. Step 2: Convert to fraction form
    31,521.28/43,491.84 = 17,906.32/x
  3. Step 3: Cross multiply
    31,521.28x = 43,491.84 × 17,906.32
  4. Step 4: Simplify right side
    31,521.28x = 778,778,804.43
  5. Step 5: Solve for x
    x = 778,778,804.43/31,521.28
  6. Step 6: Final answer
    x = 24,706.45

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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.