Home / 38,871.21-58,308.63-12,578.01

Finding the Fourth Proportional to 38,871.21, 58,308.63 and 12,578.01

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Solution

The fourth proportional to 38,871.21, 58,308.63 and 12,578.01 is: 18,867.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,871.21 : 58,308.63 = 12,578.01 : x
  2. Step 2: Convert to fraction form
    38,871.21/58,308.63 = 12,578.01/x
  3. Step 3: Cross multiply
    38,871.21x = 58,308.63 × 12,578.01
  4. Step 4: Simplify right side
    38,871.21x = 733,406,239.68
  5. Step 5: Solve for x
    x = 733,406,239.68/38,871.21
  6. Step 6: Final answer
    x = 18,867.60

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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.