Home / 20,210.03-30,288.89-13,960.07

Finding the Fourth Proportional to 20,210.03, 30,288.89 and 13,960.07

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Solution

The fourth proportional to 20,210.03, 30,288.89 and 13,960.07 is: 20,922.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210.03 : 30,288.89 = 13,960.07 : x
  2. Step 2: Convert to fraction form
    20,210.03/30,288.89 = 13,960.07/x
  3. Step 3: Cross multiply
    20,210.03x = 30,288.89 × 13,960.07
  4. Step 4: Simplify right side
    20,210.03x = 422,834,803.38
  5. Step 5: Solve for x
    x = 422,834,803.38/20,210.03
  6. Step 6: Final answer
    x = 20,922.03

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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.