Home / 39,653.86-54,708.12-22,645.84

Finding the Fourth Proportional to 39,653.86, 54,708.12 and 22,645.84

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Solution

The fourth proportional to 39,653.86, 54,708.12 and 22,645.84 is: 31,243.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,653.86 : 54,708.12 = 22,645.84 : x
  2. Step 2: Convert to fraction form
    39,653.86/54,708.12 = 22,645.84/x
  3. Step 3: Cross multiply
    39,653.86x = 54,708.12 × 22,645.84
  4. Step 4: Simplify right side
    39,653.86x = 1,238,911,332.22
  5. Step 5: Solve for x
    x = 1,238,911,332.22/39,653.86
  6. Step 6: Final answer
    x = 31,243.15

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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.