Home / 30,744.79-42,431.83-17,318.63

Finding the Fourth Proportional to 30,744.79, 42,431.83 and 17,318.63

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Solution

The fourth proportional to 30,744.79, 42,431.83 and 17,318.63 is: 23,901.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,744.79 : 42,431.83 = 17,318.63 : x
  2. Step 2: Convert to fraction form
    30,744.79/42,431.83 = 17,318.63/x
  3. Step 3: Cross multiply
    30,744.79x = 42,431.83 × 17,318.63
  4. Step 4: Simplify right side
    30,744.79x = 734,861,226.78
  5. Step 5: Solve for x
    x = 734,861,226.78/30,744.79
  6. Step 6: Final answer
    x = 23,901.98

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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.