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Finding the Fourth Proportional to 18,357.68, 27,492.12 and 17,438.96

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Solution

The fourth proportional to 18,357.68, 27,492.12 and 17,438.96 is: 26,116.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,357.68 : 27,492.12 = 17,438.96 : x
  2. Step 2: Convert to fraction form
    18,357.68/27,492.12 = 17,438.96/x
  3. Step 3: Cross multiply
    18,357.68x = 27,492.12 × 17,438.96
  4. Step 4: Simplify right side
    18,357.68x = 479,433,981.00
  5. Step 5: Solve for x
    x = 479,433,981.00/18,357.68
  6. Step 6: Final answer
    x = 26,116.26

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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.