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Finding the Fourth Proportional to 22,295.92, 30,745.40 and 15,579.10

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Solution

The fourth proportional to 22,295.92, 30,745.40 and 15,579.10 is: 21,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,295.92 : 30,745.40 = 15,579.10 : x
  2. Step 2: Convert to fraction form
    22,295.92/30,745.40 = 15,579.10/x
  3. Step 3: Cross multiply
    22,295.92x = 30,745.40 × 15,579.10
  4. Step 4: Simplify right side
    22,295.92x = 478,985,507.41
  5. Step 5: Solve for x
    x = 478,985,507.41/22,295.92
  6. Step 6: Final answer
    x = 21,483.10

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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.