Home / 39,950.32-55,114.67-28,021.45

Finding the Fourth Proportional to 39,950.32, 55,114.67 and 28,021.45

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Solution

The fourth proportional to 39,950.32, 55,114.67 and 28,021.45 is: 38,657.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,950.32 : 55,114.67 = 28,021.45 : x
  2. Step 2: Convert to fraction form
    39,950.32/55,114.67 = 28,021.45/x
  3. Step 3: Cross multiply
    39,950.32x = 55,114.67 × 28,021.45
  4. Step 4: Simplify right side
    39,950.32x = 1,544,392,901.94
  5. Step 5: Solve for x
    x = 1,544,392,901.94/39,950.32
  6. Step 6: Final answer
    x = 38,657.84

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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.