Home / 39,898.64-55,059.21-21,993.26

Finding the Fourth Proportional to 39,898.64, 55,059.21 and 21,993.26

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Solution

The fourth proportional to 39,898.64, 55,059.21 and 21,993.26 is: 30,350.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,898.64 : 55,059.21 = 21,993.26 : x
  2. Step 2: Convert to fraction form
    39,898.64/55,059.21 = 21,993.26/x
  3. Step 3: Cross multiply
    39,898.64x = 55,059.21 × 21,993.26
  4. Step 4: Simplify right side
    39,898.64x = 1,210,931,245.63
  5. Step 5: Solve for x
    x = 1,210,931,245.63/39,898.64
  6. Step 6: Final answer
    x = 30,350.19

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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.