Home / 22,383.81-30,889.01-12,312.24

Finding the Fourth Proportional to 22,383.81, 30,889.01 and 12,312.24

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Solution

The fourth proportional to 22,383.81, 30,889.01 and 12,312.24 is: 16,990.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,383.81 : 30,889.01 = 12,312.24 : x
  2. Step 2: Convert to fraction form
    22,383.81/30,889.01 = 12,312.24/x
  3. Step 3: Cross multiply
    22,383.81x = 30,889.01 × 12,312.24
  4. Step 4: Simplify right side
    22,383.81x = 380,312,842.92
  5. Step 5: Solve for x
    x = 380,312,842.92/22,383.81
  6. Step 6: Final answer
    x = 16,990.53

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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.