Home / 39,055.03-53,895.66-21,149.62

Finding the Fourth Proportional to 39,055.03, 53,895.66 and 21,149.62

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Solution

The fourth proportional to 39,055.03, 53,895.66 and 21,149.62 is: 29,186.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,055.03 : 53,895.66 = 21,149.62 : x
  2. Step 2: Convert to fraction form
    39,055.03/53,895.66 = 21,149.62/x
  3. Step 3: Cross multiply
    39,055.03x = 53,895.66 × 21,149.62
  4. Step 4: Simplify right side
    39,055.03x = 1,139,872,514.60
  5. Step 5: Solve for x
    x = 1,139,872,514.60/39,055.03
  6. Step 6: Final answer
    x = 29,186.32

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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.