Home / 18,631.72-25,701.96-14,148.04

Finding the Fourth Proportional to 18,631.72, 25,701.96 and 14,148.04

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Solution

The fourth proportional to 18,631.72, 25,701.96 and 14,148.04 is: 19,516.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.72 : 25,701.96 = 14,148.04 : x
  2. Step 2: Convert to fraction form
    18,631.72/25,701.96 = 14,148.04/x
  3. Step 3: Cross multiply
    18,631.72x = 25,701.96 × 14,148.04
  4. Step 4: Simplify right side
    18,631.72x = 363,632,358.16
  5. Step 5: Solve for x
    x = 363,632,358.16/18,631.72
  6. Step 6: Final answer
    x = 19,516.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.