Home / 22,395.84-30,905.76-12,964.24

Finding the Fourth Proportional to 22,395.84, 30,905.76 and 12,964.24

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Solution

The fourth proportional to 22,395.84, 30,905.76 and 12,964.24 is: 17,890.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,395.84 : 30,905.76 = 12,964.24 : x
  2. Step 2: Convert to fraction form
    22,395.84/30,905.76 = 12,964.24/x
  3. Step 3: Cross multiply
    22,395.84x = 30,905.76 × 12,964.24
  4. Step 4: Simplify right side
    22,395.84x = 400,669,690.02
  5. Step 5: Solve for x
    x = 400,669,690.02/22,395.84
  6. Step 6: Final answer
    x = 17,890.36

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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.