Home / 39,389.42-54,357.99-21,484.36

Finding the Fourth Proportional to 39,389.42, 54,357.99 and 21,484.36

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Solution

The fourth proportional to 39,389.42, 54,357.99 and 21,484.36 is: 29,648.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,389.42 : 54,357.99 = 21,484.36 : x
  2. Step 2: Convert to fraction form
    39,389.42/54,357.99 = 21,484.36/x
  3. Step 3: Cross multiply
    39,389.42x = 54,357.99 × 21,484.36
  4. Step 4: Simplify right side
    39,389.42x = 1,167,846,626.04
  5. Step 5: Solve for x
    x = 1,167,846,626.04/39,389.42
  6. Step 6: Final answer
    x = 29,648.74

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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.