Home / 28,214.16-42,284.79-13,427.61

Finding the Fourth Proportional to 28,214.16, 42,284.79 and 13,427.61

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Solution

The fourth proportional to 28,214.16, 42,284.79 and 13,427.61 is: 20,124.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,214.16 : 42,284.79 = 13,427.61 : x
  2. Step 2: Convert to fraction form
    28,214.16/42,284.79 = 13,427.61/x
  3. Step 3: Cross multiply
    28,214.16x = 42,284.79 × 13,427.61
  4. Step 4: Simplify right side
    28,214.16x = 567,783,669.05
  5. Step 5: Solve for x
    x = 567,783,669.05/28,214.16
  6. Step 6: Final answer
    x = 20,124.07

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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.