Home / 22,390.02-30,898.67-12,964.05

Finding the Fourth Proportional to 22,390.02, 30,898.67 and 12,964.05

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Solution

The fourth proportional to 22,390.02, 30,898.67 and 12,964.05 is: 17,890.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,390.02 : 30,898.67 = 12,964.05 : x
  2. Step 2: Convert to fraction form
    22,390.02/30,898.67 = 12,964.05/x
  3. Step 3: Cross multiply
    22,390.02x = 30,898.67 × 12,964.05
  4. Step 4: Simplify right side
    22,390.02x = 400,571,837.99
  5. Step 5: Solve for x
    x = 400,571,837.99/22,390.02
  6. Step 6: Final answer
    x = 17,890.64

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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.