Home / 18,421.47-27,636.14-5,942.20

Finding the Fourth Proportional to 18,421.47, 27,636.14 and 5,942.20

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Solution

The fourth proportional to 18,421.47, 27,636.14 and 5,942.20 is: 8,914.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.47 : 27,636.14 = 5,942.20 : x
  2. Step 2: Convert to fraction form
    18,421.47/27,636.14 = 5,942.20/x
  3. Step 3: Cross multiply
    18,421.47x = 27,636.14 × 5,942.20
  4. Step 4: Simplify right side
    18,421.47x = 164,219,471.11
  5. Step 5: Solve for x
    x = 164,219,471.11/18,421.47
  6. Step 6: Final answer
    x = 8,914.57

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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.