Home / 39,406.35-54,400.82-30,433.71

Finding the Fourth Proportional to 39,406.35, 54,400.82 and 30,433.71

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Solution

The fourth proportional to 39,406.35, 54,400.82 and 30,433.71 is: 42,014.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,406.35 : 54,400.82 = 30,433.71 : x
  2. Step 2: Convert to fraction form
    39,406.35/54,400.82 = 30,433.71/x
  3. Step 3: Cross multiply
    39,406.35x = 54,400.82 × 30,433.71
  4. Step 4: Simplify right side
    39,406.35x = 1,655,618,779.64
  5. Step 5: Solve for x
    x = 1,655,618,779.64/39,406.35
  6. Step 6: Final answer
    x = 42,014.01

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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.