Home / 30,168.30-45,258.96-9,106.59

Finding the Fourth Proportional to 30,168.30, 45,258.96 and 9,106.59

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Solution

The fourth proportional to 30,168.30, 45,258.96 and 9,106.59 is: 13,661.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168.30 : 45,258.96 = 9,106.59 : x
  2. Step 2: Convert to fraction form
    30,168.30/45,258.96 = 9,106.59/x
  3. Step 3: Cross multiply
    30,168.30x = 45,258.96 × 9,106.59
  4. Step 4: Simplify right side
    30,168.30x = 412,154,792.55
  5. Step 5: Solve for x
    x = 412,154,792.55/30,168.30
  6. Step 6: Final answer
    x = 13,661.85

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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.