Home / 18,128.92-27,150.42-14,368.60

Finding the Fourth Proportional to 18,128.92, 27,150.42 and 14,368.60

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Solution

The fourth proportional to 18,128.92, 27,150.42 and 14,368.60 is: 21,518.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.92 : 27,150.42 = 14,368.60 : x
  2. Step 2: Convert to fraction form
    18,128.92/27,150.42 = 14,368.60/x
  3. Step 3: Cross multiply
    18,128.92x = 27,150.42 × 14,368.60
  4. Step 4: Simplify right side
    18,128.92x = 390,113,524.81
  5. Step 5: Solve for x
    x = 390,113,524.81/18,128.92
  6. Step 6: Final answer
    x = 21,518.85

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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.