Home / 30,261.99-45,394.20-10,542.54

Finding the Fourth Proportional to 30,261.99, 45,394.20 and 10,542.54

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Solution

The fourth proportional to 30,261.99, 45,394.20 and 10,542.54 is: 15,814.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,261.99 : 45,394.20 = 10,542.54 : x
  2. Step 2: Convert to fraction form
    30,261.99/45,394.20 = 10,542.54/x
  3. Step 3: Cross multiply
    30,261.99x = 45,394.20 × 10,542.54
  4. Step 4: Simplify right side
    30,261.99x = 478,570,169.27
  5. Step 5: Solve for x
    x = 478,570,169.27/30,261.99
  6. Step 6: Final answer
    x = 15,814.23

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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.