Home / 39,226.68-54,133.14-21,321.69

Finding the Fourth Proportional to 39,226.68, 54,133.14 and 21,321.69

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Solution

The fourth proportional to 39,226.68, 54,133.14 and 21,321.69 is: 29,424.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,226.68 : 54,133.14 = 21,321.69 : x
  2. Step 2: Convert to fraction form
    39,226.68/54,133.14 = 21,321.69/x
  3. Step 3: Cross multiply
    39,226.68x = 54,133.14 × 21,321.69
  4. Step 4: Simplify right side
    39,226.68x = 1,154,210,029.81
  5. Step 5: Solve for x
    x = 1,154,210,029.81/39,226.68
  6. Step 6: Final answer
    x = 29,424.11

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Double scale
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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.