Home / 28,629.84-42,945.96-7,853.04

Finding the Fourth Proportional to 28,629.84, 42,945.96 and 7,853.04

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Solution

The fourth proportional to 28,629.84, 42,945.96 and 7,853.04 is: 11,779.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,629.84 : 42,945.96 = 7,853.04 : x
  2. Step 2: Convert to fraction form
    28,629.84/42,945.96 = 7,853.04/x
  3. Step 3: Cross multiply
    28,629.84x = 42,945.96 × 7,853.04
  4. Step 4: Simplify right side
    28,629.84x = 337,256,341.72
  5. Step 5: Solve for x
    x = 337,256,341.72/28,629.84
  6. Step 6: Final answer
    x = 11,779.89

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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.