Home / 39,293.35-54,226.04-21,389.56

Finding the Fourth Proportional to 39,293.35, 54,226.04 and 21,389.56

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Solution

The fourth proportional to 39,293.35, 54,226.04 and 21,389.56 is: 29,518.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,293.35 : 54,226.04 = 21,389.56 : x
  2. Step 2: Convert to fraction form
    39,293.35/54,226.04 = 21,389.56/x
  3. Step 3: Cross multiply
    39,293.35x = 54,226.04 × 21,389.56
  4. Step 4: Simplify right side
    39,293.35x = 1,159,871,136.14
  5. Step 5: Solve for x
    x = 1,159,871,136.14/39,293.35
  6. Step 6: Final answer
    x = 29,518.26

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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.