Home / 38,096.76-57,090.69-21,421.80

Finding the Fourth Proportional to 38,096.76, 57,090.69 and 21,421.80

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Solution

The fourth proportional to 38,096.76, 57,090.69 and 21,421.80 is: 32,102.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,096.76 : 57,090.69 = 21,421.80 : x
  2. Step 2: Convert to fraction form
    38,096.76/57,090.69 = 21,421.80/x
  3. Step 3: Cross multiply
    38,096.76x = 57,090.69 × 21,421.80
  4. Step 4: Simplify right side
    38,096.76x = 1,222,985,343.04
  5. Step 5: Solve for x
    x = 1,222,985,343.04/38,096.76
  6. Step 6: Final answer
    x = 32,102.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.