Home / 21,932.84-30,260.22-13,426.10

Finding the Fourth Proportional to 21,932.84, 30,260.22 and 13,426.10

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Solution

The fourth proportional to 21,932.84, 30,260.22 and 13,426.10 is: 18,523.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,932.84 : 30,260.22 = 13,426.10 : x
  2. Step 2: Convert to fraction form
    21,932.84/30,260.22 = 13,426.10/x
  3. Step 3: Cross multiply
    21,932.84x = 30,260.22 × 13,426.10
  4. Step 4: Simplify right side
    21,932.84x = 406,276,739.74
  5. Step 5: Solve for x
    x = 406,276,739.74/21,932.84
  6. Step 6: Final answer
    x = 18,523.67

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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.