Home / 30,178.06-45,228.75-13,537.42

Finding the Fourth Proportional to 30,178.06, 45,228.75 and 13,537.42

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Solution

The fourth proportional to 30,178.06, 45,228.75 and 13,537.42 is: 20,288.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,178.06 : 45,228.75 = 13,537.42 : x
  2. Step 2: Convert to fraction form
    30,178.06/45,228.75 = 13,537.42/x
  3. Step 3: Cross multiply
    30,178.06x = 45,228.75 × 13,537.42
  4. Step 4: Simplify right side
    30,178.06x = 612,280,584.83
  5. Step 5: Solve for x
    x = 612,280,584.83/30,178.06
  6. Step 6: Final answer
    x = 20,288.93

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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.