Home / 30,589.28-42,213.86-17,161.50

Finding the Fourth Proportional to 30,589.28, 42,213.86 and 17,161.50

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Solution

The fourth proportional to 30,589.28, 42,213.86 and 17,161.50 is: 23,683.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,589.28 : 42,213.86 = 17,161.50 : x
  2. Step 2: Convert to fraction form
    30,589.28/42,213.86 = 17,161.50/x
  3. Step 3: Cross multiply
    30,589.28x = 42,213.86 × 17,161.50
  4. Step 4: Simplify right side
    30,589.28x = 724,453,295.24
  5. Step 5: Solve for x
    x = 724,453,295.24/30,589.28
  6. Step 6: Final answer
    x = 23,683.24

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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.