Home / 28,134.20-42,188.99-13,347.33

Finding the Fourth Proportional to 28,134.20, 42,188.99 and 13,347.33

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Solution

The fourth proportional to 28,134.20, 42,188.99 and 13,347.33 is: 20,015.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134.20 : 42,188.99 = 13,347.33 : x
  2. Step 2: Convert to fraction form
    28,134.20/42,188.99 = 13,347.33/x
  3. Step 3: Cross multiply
    28,134.20x = 42,188.99 × 13,347.33
  4. Step 4: Simplify right side
    28,134.20x = 563,110,305.16
  5. Step 5: Solve for x
    x = 563,110,305.16/28,134.20
  6. Step 6: Final answer
    x = 20,015.16

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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.