Home / 30,179.61-45,297.36-15,399.54

Finding the Fourth Proportional to 30,179.61, 45,297.36 and 15,399.54

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Solution

The fourth proportional to 30,179.61, 45,297.36 and 15,399.54 is: 23,113.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,179.61 : 45,297.36 = 15,399.54 : x
  2. Step 2: Convert to fraction form
    30,179.61/45,297.36 = 15,399.54/x
  3. Step 3: Cross multiply
    30,179.61x = 45,297.36 × 15,399.54
  4. Step 4: Simplify right side
    30,179.61x = 697,558,507.21
  5. Step 5: Solve for x
    x = 697,558,507.21/30,179.61
  6. Step 6: Final answer
    x = 23,113.57

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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.