Home / 31,053.13-42,853.28-16,905.97

Finding the Fourth Proportional to 31,053.13, 42,853.28 and 16,905.97

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Solution

The fourth proportional to 31,053.13, 42,853.28 and 16,905.97 is: 23,330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,053.13 : 42,853.28 = 16,905.97 : x
  2. Step 2: Convert to fraction form
    31,053.13/42,853.28 = 16,905.97/x
  3. Step 3: Cross multiply
    31,053.13x = 42,853.28 × 16,905.97
  4. Step 4: Simplify right side
    31,053.13x = 724,476,266.08
  5. Step 5: Solve for x
    x = 724,476,266.08/31,053.13
  6. Step 6: Final answer
    x = 23,330.22

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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.