Home / 30,564.06-42,176.88-17,988

Finding the Fourth Proportional to 30,564.06, 42,176.88 and 17,988

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Solution

The fourth proportional to 30,564.06, 42,176.88 and 17,988 is: 24,822.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,564.06 : 42,176.88 = 17,988 : x
  2. Step 2: Convert to fraction form
    30,564.06/42,176.88 = 17,988/x
  3. Step 3: Cross multiply
    30,564.06x = 42,176.88 × 17,988
  4. Step 4: Simplify right side
    30,564.06x = 758,677,717.44
  5. Step 5: Solve for x
    x = 758,677,717.44/30,564.06
  6. Step 6: Final answer
    x = 24,822.54

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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.