Home / 21,290.59-31,940.58-6,500.67

Finding the Fourth Proportional to 21,290.59, 31,940.58 and 6,500.67

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Solution

The fourth proportional to 21,290.59, 31,940.58 and 6,500.67 is: 9,752.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,290.59 : 31,940.58 = 6,500.67 : x
  2. Step 2: Convert to fraction form
    21,290.59/31,940.58 = 6,500.67/x
  3. Step 3: Cross multiply
    21,290.59x = 31,940.58 × 6,500.67
  4. Step 4: Simplify right side
    21,290.59x = 207,634,977.98
  5. Step 5: Solve for x
    x = 207,634,977.98/21,290.59
  6. Step 6: Final answer
    x = 9,752.43

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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.