Home / 39,228.36-54,134.49-21,323.81

Finding the Fourth Proportional to 39,228.36, 54,134.49 and 21,323.81

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Solution

The fourth proportional to 39,228.36, 54,134.49 and 21,323.81 is: 29,426.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,228.36 : 54,134.49 = 21,323.81 : x
  2. Step 2: Convert to fraction form
    39,228.36/54,134.49 = 21,323.81/x
  3. Step 3: Cross multiply
    39,228.36x = 54,134.49 × 21,323.81
  4. Step 4: Simplify right side
    39,228.36x = 1,154,353,794.51
  5. Step 5: Solve for x
    x = 1,154,353,794.51/39,228.36
  6. Step 6: Final answer
    x = 29,426.51

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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.