Home / 39,054.20-53,894.13-21,149.06

Finding the Fourth Proportional to 39,054.20, 53,894.13 and 21,149.06

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Solution

The fourth proportional to 39,054.20, 53,894.13 and 21,149.06 is: 29,185.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,054.20 : 53,894.13 = 21,149.06 : x
  2. Step 2: Convert to fraction form
    39,054.20/53,894.13 = 21,149.06/x
  3. Step 3: Cross multiply
    39,054.20x = 53,894.13 × 21,149.06
  4. Step 4: Simplify right side
    39,054.20x = 1,139,810,189.02
  5. Step 5: Solve for x
    x = 1,139,810,189.02/39,054.20
  6. Step 6: Final answer
    x = 29,185.34

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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.