Home / 30,428.02-45,642.30-8,241.60

Finding the Fourth Proportional to 30,428.02, 45,642.30 and 8,241.60

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Solution

The fourth proportional to 30,428.02, 45,642.30 and 8,241.60 is: 12,362.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,428.02 : 45,642.30 = 8,241.60 : x
  2. Step 2: Convert to fraction form
    30,428.02/45,642.30 = 8,241.60/x
  3. Step 3: Cross multiply
    30,428.02x = 45,642.30 × 8,241.60
  4. Step 4: Simplify right side
    30,428.02x = 376,165,579.68
  5. Step 5: Solve for x
    x = 376,165,579.68/30,428.02
  6. Step 6: Final answer
    x = 12,362.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.