Home / 18,942.15-26,124.81-16,668.58

Finding the Fourth Proportional to 18,942.15, 26,124.81 and 16,668.58

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Solution

The fourth proportional to 18,942.15, 26,124.81 and 16,668.58 is: 22,989.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.15 : 26,124.81 = 16,668.58 : x
  2. Step 2: Convert to fraction form
    18,942.15/26,124.81 = 16,668.58/x
  3. Step 3: Cross multiply
    18,942.15x = 26,124.81 × 16,668.58
  4. Step 4: Simplify right side
    18,942.15x = 435,463,485.47
  5. Step 5: Solve for x
    x = 435,463,485.47/18,942.15
  6. Step 6: Final answer
    x = 22,989.13

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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.