Home / 35,138.22-48,490.31-20,030.38

Finding the Fourth Proportional to 35,138.22, 48,490.31 and 20,030.38

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Solution

The fourth proportional to 35,138.22, 48,490.31 and 20,030.38 is: 27,641.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,138.22 : 48,490.31 = 20,030.38 : x
  2. Step 2: Convert to fraction form
    35,138.22/48,490.31 = 20,030.38/x
  3. Step 3: Cross multiply
    35,138.22x = 48,490.31 × 20,030.38
  4. Step 4: Simplify right side
    35,138.22x = 971,279,114.24
  5. Step 5: Solve for x
    x = 971,279,114.24/35,138.22
  6. Step 6: Final answer
    x = 27,641.67

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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.