Home / 39,406.22-54,400.66-30,433.58

Finding the Fourth Proportional to 39,406.22, 54,400.66 and 30,433.58

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Solution

The fourth proportional to 39,406.22, 54,400.66 and 30,433.58 is: 42,013.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,406.22 : 54,400.66 = 30,433.58 : x
  2. Step 2: Convert to fraction form
    39,406.22/54,400.66 = 30,433.58/x
  3. Step 3: Cross multiply
    39,406.22x = 54,400.66 × 30,433.58
  4. Step 4: Simplify right side
    39,406.22x = 1,655,606,838.16
  5. Step 5: Solve for x
    x = 1,655,606,838.16/39,406.22
  6. Step 6: Final answer
    x = 42,013.85

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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.