Home / 35,500.05-48,992.45-20,397.60

Finding the Fourth Proportional to 35,500.05, 48,992.45 and 20,397.60

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Solution

The fourth proportional to 35,500.05, 48,992.45 and 20,397.60 is: 28,150.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,500.05 : 48,992.45 = 20,397.60 : x
  2. Step 2: Convert to fraction form
    35,500.05/48,992.45 = 20,397.60/x
  3. Step 3: Cross multiply
    35,500.05x = 48,992.45 × 20,397.60
  4. Step 4: Simplify right side
    35,500.05x = 999,328,296.13
  5. Step 5: Solve for x
    x = 999,328,296.13/35,500.05
  6. Step 6: Final answer
    x = 28,150.05

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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.