Home / 39,457.76-54,452.16-21,553.28

Finding the Fourth Proportional to 39,457.76, 54,452.16 and 21,553.28

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Solution

The fourth proportional to 39,457.76, 54,452.16 and 21,553.28 is: 29,743.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,457.76 : 54,452.16 = 21,553.28 : x
  2. Step 2: Convert to fraction form
    39,457.76/54,452.16 = 21,553.28/x
  3. Step 3: Cross multiply
    39,457.76x = 54,452.16 × 21,553.28
  4. Step 4: Simplify right side
    39,457.76x = 1,173,622,651.08
  5. Step 5: Solve for x
    x = 1,173,622,651.08/39,457.76
  6. Step 6: Final answer
    x = 29,743.77

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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.