Home / 30,934.45-42,689.53-17,505.43

Finding the Fourth Proportional to 30,934.45, 42,689.53 and 17,505.43

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Solution

The fourth proportional to 30,934.45, 42,689.53 and 17,505.43 is: 24,157.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,934.45 : 42,689.53 = 17,505.43 : x
  2. Step 2: Convert to fraction form
    30,934.45/42,689.53 = 17,505.43/x
  3. Step 3: Cross multiply
    30,934.45x = 42,689.53 × 17,505.43
  4. Step 4: Simplify right side
    30,934.45x = 747,298,579.15
  5. Step 5: Solve for x
    x = 747,298,579.15/30,934.45
  6. Step 6: Final answer
    x = 24,157.49

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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.