Home / 39,459.36-54,451.94-21,551.07

Finding the Fourth Proportional to 39,459.36, 54,451.94 and 21,551.07

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Solution

The fourth proportional to 39,459.36, 54,451.94 and 21,551.07 is: 29,739.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,459.36 : 54,451.94 = 21,551.07 : x
  2. Step 2: Convert to fraction form
    39,459.36/54,451.94 = 21,551.07/x
  3. Step 3: Cross multiply
    39,459.36x = 54,451.94 × 21,551.07
  4. Step 4: Simplify right side
    39,459.36x = 1,173,497,462.82
  5. Step 5: Solve for x
    x = 1,173,497,462.82/39,459.36
  6. Step 6: Final answer
    x = 29,739.39

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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.