Home / 19,812.33-29,660.31-12,394.35

Finding the Fourth Proportional to 19,812.33, 29,660.31 and 12,394.35

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Solution

The fourth proportional to 19,812.33, 29,660.31 and 12,394.35 is: 18,555.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.33 : 29,660.31 = 12,394.35 : x
  2. Step 2: Convert to fraction form
    19,812.33/29,660.31 = 12,394.35/x
  3. Step 3: Cross multiply
    19,812.33x = 29,660.31 × 12,394.35
  4. Step 4: Simplify right side
    19,812.33x = 367,620,263.25
  5. Step 5: Solve for x
    x = 367,620,263.25/19,812.33
  6. Step 6: Final answer
    x = 18,555.13

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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.