Home / 39,821.18-59,768.72-20,113.58

Finding the Fourth Proportional to 39,821.18, 59,768.72 and 20,113.58

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Solution

The fourth proportional to 39,821.18, 59,768.72 and 20,113.58 is: 30,189.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,821.18 : 59,768.72 = 20,113.58 : x
  2. Step 2: Convert to fraction form
    39,821.18/59,768.72 = 20,113.58/x
  3. Step 3: Cross multiply
    39,821.18x = 59,768.72 × 20,113.58
  4. Step 4: Simplify right side
    39,821.18x = 1,202,162,931.22
  5. Step 5: Solve for x
    x = 1,202,162,931.22/39,821.18
  6. Step 6: Final answer
    x = 30,189.03

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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.