Home / 20,210.49-30,231.34-14,206.19

Finding the Fourth Proportional to 20,210.49, 30,231.34 and 14,206.19

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Solution

The fourth proportional to 20,210.49, 30,231.34 and 14,206.19 is: 21,249.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210.49 : 30,231.34 = 14,206.19 : x
  2. Step 2: Convert to fraction form
    20,210.49/30,231.34 = 14,206.19/x
  3. Step 3: Cross multiply
    20,210.49x = 30,231.34 × 14,206.19
  4. Step 4: Simplify right side
    20,210.49x = 429,471,973.32
  5. Step 5: Solve for x
    x = 429,471,973.32/20,210.49
  6. Step 6: Final answer
    x = 21,249.95

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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.