Home / 55,493.24-83,200.98-20,428.34

Finding the Fourth Proportional to 55,493.24, 83,200.98 and 20,428.34

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Solution

The fourth proportional to 55,493.24, 83,200.98 and 20,428.34 is: 30,628.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,493.24 : 83,200.98 = 20,428.34 : x
  2. Step 2: Convert to fraction form
    55,493.24/83,200.98 = 20,428.34/x
  3. Step 3: Cross multiply
    55,493.24x = 83,200.98 × 20,428.34
  4. Step 4: Simplify right side
    55,493.24x = 1,699,657,907.77
  5. Step 5: Solve for x
    x = 1,699,657,907.77/55,493.24
  6. Step 6: Final answer
    x = 30,628.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.