Home / 30,877.56-42,609.60-19,553.04

Finding the Fourth Proportional to 30,877.56, 42,609.60 and 19,553.04

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Solution

The fourth proportional to 30,877.56, 42,609.60 and 19,553.04 is: 26,982.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,877.56 : 42,609.60 = 19,553.04 : x
  2. Step 2: Convert to fraction form
    30,877.56/42,609.60 = 19,553.04/x
  3. Step 3: Cross multiply
    30,877.56x = 42,609.60 × 19,553.04
  4. Step 4: Simplify right side
    30,877.56x = 833,147,213.18
  5. Step 5: Solve for x
    x = 833,147,213.18/30,877.56
  6. Step 6: Final answer
    x = 26,982.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.