Home / 35,811.55-49,421.32-19,679.54

Finding the Fourth Proportional to 35,811.55, 49,421.32 and 19,679.54

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Solution

The fourth proportional to 35,811.55, 49,421.32 and 19,679.54 is: 27,158.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,811.55 : 49,421.32 = 19,679.54 : x
  2. Step 2: Convert to fraction form
    35,811.55/49,421.32 = 19,679.54/x
  3. Step 3: Cross multiply
    35,811.55x = 49,421.32 × 19,679.54
  4. Step 4: Simplify right side
    35,811.55x = 972,588,825.48
  5. Step 5: Solve for x
    x = 972,588,825.48/35,811.55
  6. Step 6: Final answer
    x = 27,158.52

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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.