Home / 22,301.44-30,774.81-12,739.45

Finding the Fourth Proportional to 22,301.44, 30,774.81 and 12,739.45

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Solution

The fourth proportional to 22,301.44, 30,774.81 and 12,739.45 is: 17,579.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,301.44 : 30,774.81 = 12,739.45 : x
  2. Step 2: Convert to fraction form
    22,301.44/30,774.81 = 12,739.45/x
  3. Step 3: Cross multiply
    22,301.44x = 30,774.81 × 12,739.45
  4. Step 4: Simplify right side
    22,301.44x = 392,054,153.25
  5. Step 5: Solve for x
    x = 392,054,153.25/22,301.44
  6. Step 6: Final answer
    x = 17,579.77

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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.