Home / 30,842.74-42,563.55-18,105.04

Finding the Fourth Proportional to 30,842.74, 42,563.55 and 18,105.04

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Solution

The fourth proportional to 30,842.74, 42,563.55 and 18,105.04 is: 24,985.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,842.74 : 42,563.55 = 18,105.04 : x
  2. Step 2: Convert to fraction form
    30,842.74/42,563.55 = 18,105.04/x
  3. Step 3: Cross multiply
    30,842.74x = 42,563.55 × 18,105.04
  4. Step 4: Simplify right side
    30,842.74x = 770,614,775.29
  5. Step 5: Solve for x
    x = 770,614,775.29/30,842.74
  6. Step 6: Final answer
    x = 24,985.29

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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.