Home / 30,491.52-42,076.92-16,880.07

Finding the Fourth Proportional to 30,491.52, 42,076.92 and 16,880.07

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Solution

The fourth proportional to 30,491.52, 42,076.92 and 16,880.07 is: 23,293.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,491.52 : 42,076.92 = 16,880.07 : x
  2. Step 2: Convert to fraction form
    30,491.52/42,076.92 = 16,880.07/x
  3. Step 3: Cross multiply
    30,491.52x = 42,076.92 × 16,880.07
  4. Step 4: Simplify right side
    30,491.52x = 710,261,354.98
  5. Step 5: Solve for x
    x = 710,261,354.98/30,491.52
  6. Step 6: Final answer
    x = 23,293.73

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1.5x scale

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.