Home / 42,915.19-64,378.92-16,253.99

Finding the Fourth Proportional to 42,915.19, 64,378.92 and 16,253.99

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Solution

The fourth proportional to 42,915.19, 64,378.92 and 16,253.99 is: 24,383.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,915.19 : 64,378.92 = 16,253.99 : x
  2. Step 2: Convert to fraction form
    42,915.19/64,378.92 = 16,253.99/x
  3. Step 3: Cross multiply
    42,915.19x = 64,378.92 × 16,253.99
  4. Step 4: Simplify right side
    42,915.19x = 1,046,414,321.89
  5. Step 5: Solve for x
    x = 1,046,414,321.89/42,915.19
  6. Step 6: Final answer
    x = 24,383.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.