Home / 28,002.09-42,011.33-8,281.15

Finding the Fourth Proportional to 28,002.09, 42,011.33 and 8,281.15

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Solution

The fourth proportional to 28,002.09, 42,011.33 and 8,281.15 is: 12,424.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,002.09 : 42,011.33 = 8,281.15 : x
  2. Step 2: Convert to fraction form
    28,002.09/42,011.33 = 8,281.15/x
  3. Step 3: Cross multiply
    28,002.09x = 42,011.33 × 8,281.15
  4. Step 4: Simplify right side
    28,002.09x = 347,902,125.43
  5. Step 5: Solve for x
    x = 347,902,125.43/28,002.09
  6. Step 6: Final answer
    x = 12,424.15

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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.