Home / 30,504.18-45,758.10-11,787.11

Finding the Fourth Proportional to 30,504.18, 45,758.10 and 11,787.11

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Solution

The fourth proportional to 30,504.18, 45,758.10 and 11,787.11 is: 17,681.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,504.18 : 45,758.10 = 11,787.11 : x
  2. Step 2: Convert to fraction form
    30,504.18/45,758.10 = 11,787.11/x
  3. Step 3: Cross multiply
    30,504.18x = 45,758.10 × 11,787.11
  4. Step 4: Simplify right side
    30,504.18x = 539,355,758.09
  5. Step 5: Solve for x
    x = 539,355,758.09/30,504.18
  6. Step 6: Final answer
    x = 17,681.37

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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.