Home / 39,457.03-54,452.01-21,553.70

Finding the Fourth Proportional to 39,457.03, 54,452.01 and 21,553.70

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Solution

The fourth proportional to 39,457.03, 54,452.01 and 21,553.70 is: 29,744.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,457.03 : 54,452.01 = 21,553.70 : x
  2. Step 2: Convert to fraction form
    39,457.03/54,452.01 = 21,553.70/x
  3. Step 3: Cross multiply
    39,457.03x = 54,452.01 × 21,553.70
  4. Step 4: Simplify right side
    39,457.03x = 1,173,642,180.17
  5. Step 5: Solve for x
    x = 1,173,642,180.17/39,457.03
  6. Step 6: Final answer
    x = 29,744.82

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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.