Home / 28,807.28-43,213.40-8,030.80

Finding the Fourth Proportional to 28,807.28, 43,213.40 and 8,030.80

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Solution

The fourth proportional to 28,807.28, 43,213.40 and 8,030.80 is: 12,046.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,807.28 : 43,213.40 = 8,030.80 : x
  2. Step 2: Convert to fraction form
    28,807.28/43,213.40 = 8,030.80/x
  3. Step 3: Cross multiply
    28,807.28x = 43,213.40 × 8,030.80
  4. Step 4: Simplify right side
    28,807.28x = 347,038,172.72
  5. Step 5: Solve for x
    x = 347,038,172.72/28,807.28
  6. Step 6: Final answer
    x = 12,046.89

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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.