Home / 28,305.99-42,446.70-14,257.35

Finding the Fourth Proportional to 28,305.99, 42,446.70 and 14,257.35

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Solution

The fourth proportional to 28,305.99, 42,446.70 and 14,257.35 is: 21,379.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.99 : 42,446.70 = 14,257.35 : x
  2. Step 2: Convert to fraction form
    28,305.99/42,446.70 = 14,257.35/x
  3. Step 3: Cross multiply
    28,305.99x = 42,446.70 × 14,257.35
  4. Step 4: Simplify right side
    28,305.99x = 605,177,458.25
  5. Step 5: Solve for x
    x = 605,177,458.25/28,305.99
  6. Step 6: Final answer
    x = 21,379.84

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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.