Home / 30,627.62-42,263.07-18,693.89

Finding the Fourth Proportional to 30,627.62, 42,263.07 and 18,693.89

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Solution

The fourth proportional to 30,627.62, 42,263.07 and 18,693.89 is: 25,795.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,627.62 : 42,263.07 = 18,693.89 : x
  2. Step 2: Convert to fraction form
    30,627.62/42,263.07 = 18,693.89/x
  3. Step 3: Cross multiply
    30,627.62x = 42,263.07 × 18,693.89
  4. Step 4: Simplify right side
    30,627.62x = 790,061,181.64
  5. Step 5: Solve for x
    x = 790,061,181.64/30,627.62
  6. Step 6: Final answer
    x = 25,795.71

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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.