Home / 30,345.04-45,517.56-19,954.36

Finding the Fourth Proportional to 30,345.04, 45,517.56 and 19,954.36

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Solution

The fourth proportional to 30,345.04, 45,517.56 and 19,954.36 is: 29,931.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,345.04 : 45,517.56 = 19,954.36 : x
  2. Step 2: Convert to fraction form
    30,345.04/45,517.56 = 19,954.36/x
  3. Step 3: Cross multiply
    30,345.04x = 45,517.56 × 19,954.36
  4. Step 4: Simplify right side
    30,345.04x = 908,273,778.56
  5. Step 5: Solve for x
    x = 908,273,778.56/30,345.04
  6. Step 6: Final answer
    x = 29,931.54

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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.