Home / 39,022.58-53,851.16-21,117.59

Finding the Fourth Proportional to 39,022.58, 53,851.16 and 21,117.59

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Solution

The fourth proportional to 39,022.58, 53,851.16 and 21,117.59 is: 29,142.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,022.58 : 53,851.16 = 21,117.59 : x
  2. Step 2: Convert to fraction form
    39,022.58/53,851.16 = 21,117.59/x
  3. Step 3: Cross multiply
    39,022.58x = 53,851.16 × 21,117.59
  4. Step 4: Simplify right side
    39,022.58x = 1,137,206,395.85
  5. Step 5: Solve for x
    x = 1,137,206,395.85/39,022.58
  6. Step 6: Final answer
    x = 29,142.27

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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.