Home / 22,384.19-30,890.91-12,313.40

Finding the Fourth Proportional to 22,384.19, 30,890.91 and 12,313.40

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Solution

The fourth proportional to 22,384.19, 30,890.91 and 12,313.40 is: 16,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,384.19 : 30,890.91 = 12,313.40 : x
  2. Step 2: Convert to fraction form
    22,384.19/30,890.91 = 12,313.40/x
  3. Step 3: Cross multiply
    22,384.19x = 30,890.91 × 12,313.40
  4. Step 4: Simplify right side
    22,384.19x = 380,372,131.19
  5. Step 5: Solve for x
    x = 380,372,131.19/22,384.19
  6. Step 6: Final answer
    x = 16,992.90

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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.