Home / 20,944.80-31,417.47-5,362.02

Finding the Fourth Proportional to 20,944.80, 31,417.47 and 5,362.02

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Solution

The fourth proportional to 20,944.80, 31,417.47 and 5,362.02 is: 8,043.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.80 : 31,417.47 = 5,362.02 : x
  2. Step 2: Convert to fraction form
    20,944.80/31,417.47 = 5,362.02/x
  3. Step 3: Cross multiply
    20,944.80x = 31,417.47 × 5,362.02
  4. Step 4: Simplify right side
    20,944.80x = 168,461,102.49
  5. Step 5: Solve for x
    x = 168,461,102.49/20,944.80
  6. Step 6: Final answer
    x = 8,043.10

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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.