Home / 22,245.02-30,683.96-15,528.20

Finding the Fourth Proportional to 22,245.02, 30,683.96 and 15,528.20

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Solution

The fourth proportional to 22,245.02, 30,683.96 and 15,528.20 is: 21,419.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,245.02 : 30,683.96 = 15,528.20 : x
  2. Step 2: Convert to fraction form
    22,245.02/30,683.96 = 15,528.20/x
  3. Step 3: Cross multiply
    22,245.02x = 30,683.96 × 15,528.20
  4. Step 4: Simplify right side
    22,245.02x = 476,466,667.67
  5. Step 5: Solve for x
    x = 476,466,667.67/22,245.02
  6. Step 6: Final answer
    x = 21,419.03

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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.