Home / 30,049.02-45,079.98-8,990.70

Finding the Fourth Proportional to 30,049.02, 45,079.98 and 8,990.70

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Solution

The fourth proportional to 30,049.02, 45,079.98 and 8,990.70 is: 13,487.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,049.02 : 45,079.98 = 8,990.70 : x
  2. Step 2: Convert to fraction form
    30,049.02/45,079.98 = 8,990.70/x
  3. Step 3: Cross multiply
    30,049.02x = 45,079.98 × 8,990.70
  4. Step 4: Simplify right side
    30,049.02x = 405,300,576.19
  5. Step 5: Solve for x
    x = 405,300,576.19/30,049.02
  6. Step 6: Final answer
    x = 13,487.98

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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.