Home / 22,384.06-30,889.35-12,312.49

Finding the Fourth Proportional to 22,384.06, 30,889.35 and 12,312.49

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Solution

The fourth proportional to 22,384.06, 30,889.35 and 12,312.49 is: 16,990.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,384.06 : 30,889.35 = 12,312.49 : x
  2. Step 2: Convert to fraction form
    22,384.06/30,889.35 = 12,312.49/x
  3. Step 3: Cross multiply
    22,384.06x = 30,889.35 × 12,312.49
  4. Step 4: Simplify right side
    22,384.06x = 380,324,812.98
  5. Step 5: Solve for x
    x = 380,324,812.98/22,384.06
  6. Step 6: Final answer
    x = 16,990.88

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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.