Home / 20,289.02-30,433.54-13,313.18

Finding the Fourth Proportional to 20,289.02, 30,433.54 and 13,313.18

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Solution

The fourth proportional to 20,289.02, 30,433.54 and 13,313.18 is: 19,969.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289.02 : 30,433.54 = 13,313.18 : x
  2. Step 2: Convert to fraction form
    20,289.02/30,433.54 = 13,313.18/x
  3. Step 3: Cross multiply
    20,289.02x = 30,433.54 × 13,313.18
  4. Step 4: Simplify right side
    20,289.02x = 405,167,010.61
  5. Step 5: Solve for x
    x = 405,167,010.61/20,289.02
  6. Step 6: Final answer
    x = 19,969.76

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Similar ratio
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1.5x scale

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.