Home / 20,560.55-30,841.93-6,521.64

Finding the Fourth Proportional to 20,560.55, 30,841.93 and 6,521.64

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Solution

The fourth proportional to 20,560.55, 30,841.93 and 6,521.64 is: 9,782.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.55 : 30,841.93 = 6,521.64 : x
  2. Step 2: Convert to fraction form
    20,560.55/30,841.93 = 6,521.64/x
  3. Step 3: Cross multiply
    20,560.55x = 30,841.93 × 6,521.64
  4. Step 4: Simplify right side
    20,560.55x = 201,139,964.37
  5. Step 5: Solve for x
    x = 201,139,964.37/20,560.55
  6. Step 6: Final answer
    x = 9,782.81

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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.