Home / 35,421.70-48,883.45-20,318.62

Finding the Fourth Proportional to 35,421.70, 48,883.45 and 20,318.62

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Solution

The fourth proportional to 35,421.70, 48,883.45 and 20,318.62 is: 28,040.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,421.70 : 48,883.45 = 20,318.62 : x
  2. Step 2: Convert to fraction form
    35,421.70/48,883.45 = 20,318.62/x
  3. Step 3: Cross multiply
    35,421.70x = 48,883.45 × 20,318.62
  4. Step 4: Simplify right side
    35,421.70x = 993,244,000.42
  5. Step 5: Solve for x
    x = 993,244,000.42/35,421.70
  6. Step 6: Final answer
    x = 28,040.56

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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.