Home / 39,829.90-54,965.25-21,924.81

Finding the Fourth Proportional to 39,829.90, 54,965.25 and 21,924.81

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Solution

The fourth proportional to 39,829.90, 54,965.25 and 21,924.81 is: 30,256.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,829.90 : 54,965.25 = 21,924.81 : x
  2. Step 2: Convert to fraction form
    39,829.90/54,965.25 = 21,924.81/x
  3. Step 3: Cross multiply
    39,829.90x = 54,965.25 × 21,924.81
  4. Step 4: Simplify right side
    39,829.90x = 1,205,102,690.64
  5. Step 5: Solve for x
    x = 1,205,102,690.64/39,829.90
  6. Step 6: Final answer
    x = 30,256.23

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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.