Home / 21,313.83-31,969.58-6,522.74

Finding the Fourth Proportional to 21,313.83, 31,969.58 and 6,522.74

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Solution

The fourth proportional to 21,313.83, 31,969.58 and 6,522.74 is: 9,783.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.83 : 31,969.58 = 6,522.74 : x
  2. Step 2: Convert to fraction form
    21,313.83/31,969.58 = 6,522.74/x
  3. Step 3: Cross multiply
    21,313.83x = 31,969.58 × 6,522.74
  4. Step 4: Simplify right side
    21,313.83x = 208,529,065.79
  5. Step 5: Solve for x
    x = 208,529,065.79/21,313.83
  6. Step 6: Final answer
    x = 9,783.74

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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.