Home / 38,421.36-57,583.56-20,607.84

Finding the Fourth Proportional to 38,421.36, 57,583.56 and 20,607.84

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Solution

The fourth proportional to 38,421.36, 57,583.56 and 20,607.84 is: 30,885.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,421.36 : 57,583.56 = 20,607.84 : x
  2. Step 2: Convert to fraction form
    38,421.36/57,583.56 = 20,607.84/x
  3. Step 3: Cross multiply
    38,421.36x = 57,583.56 × 20,607.84
  4. Step 4: Simplify right side
    38,421.36x = 1,186,672,791.11
  5. Step 5: Solve for x
    x = 1,186,672,791.11/38,421.36
  6. Step 6: Final answer
    x = 30,885.76

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1.5x scale

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.