Home / 39,807.36-54,935.46-21,903.66

Finding the Fourth Proportional to 39,807.36, 54,935.46 and 21,903.66

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Solution

The fourth proportional to 39,807.36, 54,935.46 and 21,903.66 is: 30,227.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,807.36 : 54,935.46 = 21,903.66 : x
  2. Step 2: Convert to fraction form
    39,807.36/54,935.46 = 21,903.66/x
  3. Step 3: Cross multiply
    39,807.36x = 54,935.46 × 21,903.66
  4. Step 4: Simplify right side
    39,807.36x = 1,203,287,637.78
  5. Step 5: Solve for x
    x = 1,203,287,637.78/39,807.36
  6. Step 6: Final answer
    x = 30,227.77

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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.