Home / 39,859.35-55,009.79-29,770.28

Finding the Fourth Proportional to 39,859.35, 55,009.79 and 29,770.28

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Solution

The fourth proportional to 39,859.35, 55,009.79 and 29,770.28 is: 41,085.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,859.35 : 55,009.79 = 29,770.28 : x
  2. Step 2: Convert to fraction form
    39,859.35/55,009.79 = 29,770.28/x
  3. Step 3: Cross multiply
    39,859.35x = 55,009.79 × 29,770.28
  4. Step 4: Simplify right side
    39,859.35x = 1,637,656,427.14
  5. Step 5: Solve for x
    x = 1,637,656,427.14/39,859.35
  6. Step 6: Final answer
    x = 41,085.88

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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.