Home / 28,018.76-42,022.32-8,292.69

Finding the Fourth Proportional to 28,018.76, 42,022.32 and 8,292.69

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Solution

The fourth proportional to 28,018.76, 42,022.32 and 8,292.69 is: 12,437.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018.76 : 42,022.32 = 8,292.69 : x
  2. Step 2: Convert to fraction form
    28,018.76/42,022.32 = 8,292.69/x
  3. Step 3: Cross multiply
    28,018.76x = 42,022.32 × 8,292.69
  4. Step 4: Simplify right side
    28,018.76x = 348,478,072.84
  5. Step 5: Solve for x
    x = 348,478,072.84/28,018.76
  6. Step 6: Final answer
    x = 12,437.31

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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.