Home / 30,431.02-45,646.80-8,244.60

Finding the Fourth Proportional to 30,431.02, 45,646.80 and 8,244.60

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Solution

The fourth proportional to 30,431.02, 45,646.80 and 8,244.60 is: 12,366.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,431.02 : 45,646.80 = 8,244.60 : x
  2. Step 2: Convert to fraction form
    30,431.02/45,646.80 = 8,244.60/x
  3. Step 3: Cross multiply
    30,431.02x = 45,646.80 × 8,244.60
  4. Step 4: Simplify right side
    30,431.02x = 376,339,607.28
  5. Step 5: Solve for x
    x = 376,339,607.28/30,431.02
  6. Step 6: Final answer
    x = 12,366.97

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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.