Home / 22,280.02-30,745.50-13,322.23

Finding the Fourth Proportional to 22,280.02, 30,745.50 and 13,322.23

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Solution

The fourth proportional to 22,280.02, 30,745.50 and 13,322.23 is: 18,384.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,280.02 : 30,745.50 = 13,322.23 : x
  2. Step 2: Convert to fraction form
    22,280.02/30,745.50 = 13,322.23/x
  3. Step 3: Cross multiply
    22,280.02x = 30,745.50 × 13,322.23
  4. Step 4: Simplify right side
    22,280.02x = 409,598,622.47
  5. Step 5: Solve for x
    x = 409,598,622.47/22,280.02
  6. Step 6: Final answer
    x = 18,384.12

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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.