Home / 39,509.85-54,525.62-21,604.67

Finding the Fourth Proportional to 39,509.85, 54,525.62 and 21,604.67

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Solution

The fourth proportional to 39,509.85, 54,525.62 and 21,604.67 is: 29,815.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,509.85 : 54,525.62 = 21,604.67 : x
  2. Step 2: Convert to fraction form
    39,509.85/54,525.62 = 21,604.67/x
  3. Step 3: Cross multiply
    39,509.85x = 54,525.62 × 21,604.67
  4. Step 4: Simplify right side
    39,509.85x = 1,178,008,026.65
  5. Step 5: Solve for x
    x = 1,178,008,026.65/39,509.85
  6. Step 6: Final answer
    x = 29,815.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.