Home / 39,226.65-54,133.14-21,321.70

Finding the Fourth Proportional to 39,226.65, 54,133.14 and 21,321.70

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Solution

The fourth proportional to 39,226.65, 54,133.14 and 21,321.70 is: 29,424.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,226.65 : 54,133.14 = 21,321.70 : x
  2. Step 2: Convert to fraction form
    39,226.65/54,133.14 = 21,321.70/x
  3. Step 3: Cross multiply
    39,226.65x = 54,133.14 × 21,321.70
  4. Step 4: Simplify right side
    39,226.65x = 1,154,210,571.14
  5. Step 5: Solve for x
    x = 1,154,210,571.14/39,226.65
  6. Step 6: Final answer
    x = 29,424.14

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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.