Home / 35,505.48-48,999.15-20,403.03

Finding the Fourth Proportional to 35,505.48, 48,999.15 and 20,403.03

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Solution

The fourth proportional to 35,505.48, 48,999.15 and 20,403.03 is: 28,157.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,505.48 : 48,999.15 = 20,403.03 : x
  2. Step 2: Convert to fraction form
    35,505.48/48,999.15 = 20,403.03/x
  3. Step 3: Cross multiply
    35,505.48x = 48,999.15 × 20,403.03
  4. Step 4: Simplify right side
    35,505.48x = 999,731,127.42
  5. Step 5: Solve for x
    x = 999,731,127.42/35,505.48
  6. Step 6: Final answer
    x = 28,157.09

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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.