Home / 30,923.79-42,672.24-17,491.95

Finding the Fourth Proportional to 30,923.79, 42,672.24 and 17,491.95

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Solution

The fourth proportional to 30,923.79, 42,672.24 and 17,491.95 is: 24,137.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,923.79 : 42,672.24 = 17,491.95 : x
  2. Step 2: Convert to fraction form
    30,923.79/42,672.24 = 17,491.95/x
  3. Step 3: Cross multiply
    30,923.79x = 42,672.24 × 17,491.95
  4. Step 4: Simplify right side
    30,923.79x = 746,420,688.47
  5. Step 5: Solve for x
    x = 746,420,688.47/30,923.79
  6. Step 6: Final answer
    x = 24,137.43

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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.