Home / 28,305.45-42,427.19-14,243.04

Finding the Fourth Proportional to 28,305.45, 42,427.19 and 14,243.04

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Solution

The fourth proportional to 28,305.45, 42,427.19 and 14,243.04 is: 21,348.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.45 : 42,427.19 = 14,243.04 : x
  2. Step 2: Convert to fraction form
    28,305.45/42,427.19 = 14,243.04/x
  3. Step 3: Cross multiply
    28,305.45x = 42,427.19 × 14,243.04
  4. Step 4: Simplify right side
    28,305.45x = 604,292,199.87
  5. Step 5: Solve for x
    x = 604,292,199.87/28,305.45
  6. Step 6: Final answer
    x = 21,348.97

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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.