Home / 43,028.90-64,449.88-20,795.65

Finding the Fourth Proportional to 43,028.90, 64,449.88 and 20,795.65

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Solution

The fourth proportional to 43,028.90, 64,449.88 and 20,795.65 is: 31,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,028.90 : 64,449.88 = 20,795.65 : x
  2. Step 2: Convert to fraction form
    43,028.90/64,449.88 = 20,795.65/x
  3. Step 3: Cross multiply
    43,028.90x = 64,449.88 × 20,795.65
  4. Step 4: Simplify right side
    43,028.90x = 1,340,277,011.89
  5. Step 5: Solve for x
    x = 1,340,277,011.89/43,028.90
  6. Step 6: Final answer
    x = 31,148.30

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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.