Home / 38,985.26-53,799.69-21,080.28

Finding the Fourth Proportional to 38,985.26, 53,799.69 and 21,080.28

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Solution

The fourth proportional to 38,985.26, 53,799.69 and 21,080.28 is: 29,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,985.26 : 53,799.69 = 21,080.28 : x
  2. Step 2: Convert to fraction form
    38,985.26/53,799.69 = 21,080.28/x
  3. Step 3: Cross multiply
    38,985.26x = 53,799.69 × 21,080.28
  4. Step 4: Simplify right side
    38,985.26x = 1,134,112,327.36
  5. Step 5: Solve for x
    x = 1,134,112,327.36/38,985.26
  6. Step 6: Final answer
    x = 29,090.80

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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.