Home / 39,033.08-53,865.24-21,127.72

Finding the Fourth Proportional to 39,033.08, 53,865.24 and 21,127.72

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Solution

The fourth proportional to 39,033.08, 53,865.24 and 21,127.72 is: 29,156.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,033.08 : 53,865.24 = 21,127.72 : x
  2. Step 2: Convert to fraction form
    39,033.08/53,865.24 = 21,127.72/x
  3. Step 3: Cross multiply
    39,033.08x = 53,865.24 × 21,127.72
  4. Step 4: Simplify right side
    39,033.08x = 1,138,049,708.45
  5. Step 5: Solve for x
    x = 1,138,049,708.45/39,033.08
  6. Step 6: Final answer
    x = 29,156.03

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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.