Home / 35,508.27-48,999.75-20,390.31

Finding the Fourth Proportional to 35,508.27, 48,999.75 and 20,390.31

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Solution

The fourth proportional to 35,508.27, 48,999.75 and 20,390.31 is: 28,137.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,508.27 : 48,999.75 = 20,390.31 : x
  2. Step 2: Convert to fraction form
    35,508.27/48,999.75 = 20,390.31/x
  3. Step 3: Cross multiply
    35,508.27x = 48,999.75 × 20,390.31
  4. Step 4: Simplify right side
    35,508.27x = 999,120,092.42
  5. Step 5: Solve for x
    x = 999,120,092.42/35,508.27
  6. Step 6: Final answer
    x = 28,137.67

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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.