Home / 20,263.05-27,962.28-12,713.45

Finding the Fourth Proportional to 20,263.05, 27,962.28 and 12,713.45

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Solution

The fourth proportional to 20,263.05, 27,962.28 and 12,713.45 is: 17,544.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.05 : 27,962.28 = 12,713.45 : x
  2. Step 2: Convert to fraction form
    20,263.05/27,962.28 = 12,713.45/x
  3. Step 3: Cross multiply
    20,263.05x = 27,962.28 × 12,713.45
  4. Step 4: Simplify right side
    20,263.05x = 355,496,908.85
  5. Step 5: Solve for x
    x = 355,496,908.85/20,263.05
  6. Step 6: Final answer
    x = 17,544.10

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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.