Home / 30,426.02-45,639.30-8,239.60

Finding the Fourth Proportional to 30,426.02, 45,639.30 and 8,239.60

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Solution

The fourth proportional to 30,426.02, 45,639.30 and 8,239.60 is: 12,359.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,426.02 : 45,639.30 = 8,239.60 : x
  2. Step 2: Convert to fraction form
    30,426.02/45,639.30 = 8,239.60/x
  3. Step 3: Cross multiply
    30,426.02x = 45,639.30 × 8,239.60
  4. Step 4: Simplify right side
    30,426.02x = 376,049,576.28
  5. Step 5: Solve for x
    x = 376,049,576.28/30,426.02
  6. Step 6: Final answer
    x = 12,359.47

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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.