Home / 35,187.80-48,551.36-20,840.47

Finding the Fourth Proportional to 35,187.80, 48,551.36 and 20,840.47

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Solution

The fourth proportional to 35,187.80, 48,551.36 and 20,840.47 is: 28,755.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,187.80 : 48,551.36 = 20,840.47 : x
  2. Step 2: Convert to fraction form
    35,187.80/48,551.36 = 20,840.47/x
  3. Step 3: Cross multiply
    35,187.80x = 48,551.36 × 20,840.47
  4. Step 4: Simplify right side
    35,187.80x = 1,011,832,935.96
  5. Step 5: Solve for x
    x = 1,011,832,935.96/35,187.80
  6. Step 6: Final answer
    x = 28,755.22

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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.