Home / 35,911.86-49,557.90-19,778.86

Finding the Fourth Proportional to 35,911.86, 49,557.90 and 19,778.86

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Solution

The fourth proportional to 35,911.86, 49,557.90 and 19,778.86 is: 27,294.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,911.86 : 49,557.90 = 19,778.86 : x
  2. Step 2: Convert to fraction form
    35,911.86/49,557.90 = 19,778.86/x
  3. Step 3: Cross multiply
    35,911.86x = 49,557.90 × 19,778.86
  4. Step 4: Simplify right side
    35,911.86x = 980,198,707.10
  5. Step 5: Solve for x
    x = 980,198,707.10/35,911.86
  6. Step 6: Final answer
    x = 27,294.57

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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.