Home / 28,279.96-42,355.32-13,499.26

Finding the Fourth Proportional to 28,279.96, 42,355.32 and 13,499.26

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Solution

The fourth proportional to 28,279.96, 42,355.32 and 13,499.26 is: 20,218.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,279.96 : 42,355.32 = 13,499.26 : x
  2. Step 2: Convert to fraction form
    28,279.96/42,355.32 = 13,499.26/x
  3. Step 3: Cross multiply
    28,279.96x = 42,355.32 × 13,499.26
  4. Step 4: Simplify right side
    28,279.96x = 571,765,477.06
  5. Step 5: Solve for x
    x = 571,765,477.06/28,279.96
  6. Step 6: Final answer
    x = 20,218.04

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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.