Home / 21,313.11-31,969.67-6,522.31

Finding the Fourth Proportional to 21,313.11, 31,969.67 and 6,522.31

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Solution

The fourth proportional to 21,313.11, 31,969.67 and 6,522.31 is: 9,783.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.11 : 31,969.67 = 6,522.31 : x
  2. Step 2: Convert to fraction form
    21,313.11/31,969.67 = 6,522.31/x
  3. Step 3: Cross multiply
    21,313.11x = 31,969.67 × 6,522.31
  4. Step 4: Simplify right side
    21,313.11x = 208,516,098.34
  5. Step 5: Solve for x
    x = 208,516,098.34/21,313.11
  6. Step 6: Final answer
    x = 9,783.47

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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.