Home / 35,422.20-48,878.10-20,317.32

Finding the Fourth Proportional to 35,422.20, 48,878.10 and 20,317.32

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Solution

The fourth proportional to 35,422.20, 48,878.10 and 20,317.32 is: 28,035.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,422.20 : 48,878.10 = 20,317.32 : x
  2. Step 2: Convert to fraction form
    35,422.20/48,878.10 = 20,317.32/x
  3. Step 3: Cross multiply
    35,422.20x = 48,878.10 × 20,317.32
  4. Step 4: Simplify right side
    35,422.20x = 993,071,998.69
  5. Step 5: Solve for x
    x = 993,071,998.69/35,422.20
  6. Step 6: Final answer
    x = 28,035.30

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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.