Home / 30,812.08-42,519.96-18,237.04

Finding the Fourth Proportional to 30,812.08, 42,519.96 and 18,237.04

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Solution

The fourth proportional to 30,812.08, 42,519.96 and 18,237.04 is: 25,166.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,812.08 : 42,519.96 = 18,237.04 : x
  2. Step 2: Convert to fraction form
    30,812.08/42,519.96 = 18,237.04/x
  3. Step 3: Cross multiply
    30,812.08x = 42,519.96 × 18,237.04
  4. Step 4: Simplify right side
    30,812.08x = 775,438,211.32
  5. Step 5: Solve for x
    x = 775,438,211.32/30,812.08
  6. Step 6: Final answer
    x = 25,166.69

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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.