Home / 43,386.41-65,104.12-20,012.85

Finding the Fourth Proportional to 43,386.41, 65,104.12 and 20,012.85

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Solution

The fourth proportional to 43,386.41, 65,104.12 and 20,012.85 is: 30,030.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,386.41 : 65,104.12 = 20,012.85 : x
  2. Step 2: Convert to fraction form
    43,386.41/65,104.12 = 20,012.85/x
  3. Step 3: Cross multiply
    43,386.41x = 65,104.12 × 20,012.85
  4. Step 4: Simplify right side
    43,386.41x = 1,302,918,987.94
  5. Step 5: Solve for x
    x = 1,302,918,987.94/43,386.41
  6. Step 6: Final answer
    x = 30,030.58

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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.