Home / 30,147.54-45,206.92-13,507.71

Finding the Fourth Proportional to 30,147.54, 45,206.92 and 13,507.71

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Solution

The fourth proportional to 30,147.54, 45,206.92 and 13,507.71 is: 20,255.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,147.54 : 45,206.92 = 13,507.71 : x
  2. Step 2: Convert to fraction form
    30,147.54/45,206.92 = 13,507.71/x
  3. Step 3: Cross multiply
    30,147.54x = 45,206.92 × 13,507.71
  4. Step 4: Simplify right side
    30,147.54x = 610,641,965.35
  5. Step 5: Solve for x
    x = 610,641,965.35/30,147.54
  6. Step 6: Final answer
    x = 20,255.12

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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.