Home / 39,226.71-54,133.37-21,321.72

Finding the Fourth Proportional to 39,226.71, 54,133.37 and 21,321.72

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Solution

The fourth proportional to 39,226.71, 54,133.37 and 21,321.72 is: 29,424.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,226.71 : 54,133.37 = 21,321.72 : x
  2. Step 2: Convert to fraction form
    39,226.71/54,133.37 = 21,321.72/x
  3. Step 3: Cross multiply
    39,226.71x = 54,133.37 × 21,321.72
  4. Step 4: Simplify right side
    39,226.71x = 1,154,216,451.19
  5. Step 5: Solve for x
    x = 1,154,216,451.19/39,226.71
  6. Step 6: Final answer
    x = 29,424.25

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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.