Home / 30,589.26-42,213.47-17,160.80

Finding the Fourth Proportional to 30,589.26, 42,213.47 and 17,160.80

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Solution

The fourth proportional to 30,589.26, 42,213.47 and 17,160.80 is: 23,682.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,589.26 : 42,213.47 = 17,160.80 : x
  2. Step 2: Convert to fraction form
    30,589.26/42,213.47 = 17,160.80/x
  3. Step 3: Cross multiply
    30,589.26x = 42,213.47 × 17,160.80
  4. Step 4: Simplify right side
    30,589.26x = 724,416,830.17
  5. Step 5: Solve for x
    x = 724,416,830.17/30,589.26
  6. Step 6: Final answer
    x = 23,682.07

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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.