Home / 31,424.51-43,353.48-17,988.53

Finding the Fourth Proportional to 31,424.51, 43,353.48 and 17,988.53

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Solution

The fourth proportional to 31,424.51, 43,353.48 and 17,988.53 is: 24,817.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,424.51 : 43,353.48 = 17,988.53 : x
  2. Step 2: Convert to fraction form
    31,424.51/43,353.48 = 17,988.53/x
  3. Step 3: Cross multiply
    31,424.51x = 43,353.48 × 17,988.53
  4. Step 4: Simplify right side
    31,424.51x = 779,865,483.97
  5. Step 5: Solve for x
    x = 779,865,483.97/31,424.51
  6. Step 6: Final answer
    x = 24,817.11

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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.