Home / 39,228.93-54,136.23-21,323.94

Finding the Fourth Proportional to 39,228.93, 54,136.23 and 21,323.94

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Solution

The fourth proportional to 39,228.93, 54,136.23 and 21,323.94 is: 29,427.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,228.93 : 54,136.23 = 21,323.94 : x
  2. Step 2: Convert to fraction form
    39,228.93/54,136.23 = 21,323.94/x
  3. Step 3: Cross multiply
    39,228.93x = 54,136.23 × 21,323.94
  4. Step 4: Simplify right side
    39,228.93x = 1,154,397,720.35
  5. Step 5: Solve for x
    x = 1,154,397,720.35/39,228.93
  6. Step 6: Final answer
    x = 29,427.20

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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.