Home / 30,861.49-42,591.48-17,435.21

Finding the Fourth Proportional to 30,861.49, 42,591.48 and 17,435.21

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Solution

The fourth proportional to 30,861.49, 42,591.48 and 17,435.21 is: 24,062.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,861.49 : 42,591.48 = 17,435.21 : x
  2. Step 2: Convert to fraction form
    30,861.49/42,591.48 = 17,435.21/x
  3. Step 3: Cross multiply
    30,861.49x = 42,591.48 × 17,435.21
  4. Step 4: Simplify right side
    30,861.49x = 742,591,398.01
  5. Step 5: Solve for x
    x = 742,591,398.01/30,861.49
  6. Step 6: Final answer
    x = 24,062.07

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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.