Home / 21,313.08-31,968.45-6,521.99

Finding the Fourth Proportional to 21,313.08, 31,968.45 and 6,521.99

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Solution

The fourth proportional to 21,313.08, 31,968.45 and 6,521.99 is: 9,782.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.08 : 31,968.45 = 6,521.99 : x
  2. Step 2: Convert to fraction form
    21,313.08/31,968.45 = 6,521.99/x
  3. Step 3: Cross multiply
    21,313.08x = 31,968.45 × 6,521.99
  4. Step 4: Simplify right side
    21,313.08x = 208,497,751.37
  5. Step 5: Solve for x
    x = 208,497,751.37/21,313.08
  6. Step 6: Final answer
    x = 9,782.62

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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.