Home / 31,152.51-42,989.27-17,005.46

Finding the Fourth Proportional to 31,152.51, 42,989.27 and 17,005.46

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Solution

The fourth proportional to 31,152.51, 42,989.27 and 17,005.46 is: 23,466.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,152.51 : 42,989.27 = 17,005.46 : x
  2. Step 2: Convert to fraction form
    31,152.51/42,989.27 = 17,005.46/x
  3. Step 3: Cross multiply
    31,152.51x = 42,989.27 × 17,005.46
  4. Step 4: Simplify right side
    31,152.51x = 731,052,011.44
  5. Step 5: Solve for x
    x = 731,052,011.44/31,152.51
  6. Step 6: Final answer
    x = 23,466.87

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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.