Home / 20,018.68-27,626.23-12,957.40

Finding the Fourth Proportional to 20,018.68, 27,626.23 and 12,957.40

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Solution

The fourth proportional to 20,018.68, 27,626.23 and 12,957.40 is: 17,881.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018.68 : 27,626.23 = 12,957.40 : x
  2. Step 2: Convert to fraction form
    20,018.68/27,626.23 = 12,957.40/x
  3. Step 3: Cross multiply
    20,018.68x = 27,626.23 × 12,957.40
  4. Step 4: Simplify right side
    20,018.68x = 357,964,163.33
  5. Step 5: Solve for x
    x = 357,964,163.33/20,018.68
  6. Step 6: Final answer
    x = 17,881.51

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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.