Home / 28,090.68-38,764.08-15,343.44

Finding the Fourth Proportional to 28,090.68, 38,764.08 and 15,343.44

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Solution

The fourth proportional to 28,090.68, 38,764.08 and 15,343.44 is: 21,173.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,090.68 : 38,764.08 = 15,343.44 : x
  2. Step 2: Convert to fraction form
    28,090.68/38,764.08 = 15,343.44/x
  3. Step 3: Cross multiply
    28,090.68x = 38,764.08 × 15,343.44
  4. Step 4: Simplify right side
    28,090.68x = 594,774,335.64
  5. Step 5: Solve for x
    x = 594,774,335.64/28,090.68
  6. Step 6: Final answer
    x = 21,173.37

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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.