Home / 20,237.10-30,355.65-19,005.90

Finding the Fourth Proportional to 20,237.10, 30,355.65 and 19,005.90

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Solution

The fourth proportional to 20,237.10, 30,355.65 and 19,005.90 is: 28,508.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.10 : 30,355.65 = 19,005.90 : x
  2. Step 2: Convert to fraction form
    20,237.10/30,355.65 = 19,005.90/x
  3. Step 3: Cross multiply
    20,237.10x = 30,355.65 × 19,005.90
  4. Step 4: Simplify right side
    20,237.10x = 576,936,448.34
  5. Step 5: Solve for x
    x = 576,936,448.34/20,237.10
  6. Step 6: Final answer
    x = 28,508.85

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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.