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Finding the Fourth Proportional to 21,193.00, 31,750.74 and 9,927.65

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Solution

The fourth proportional to 21,193.00, 31,750.74 and 9,927.65 is: 14,873.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193.00 : 31,750.74 = 9,927.65 : x
  2. Step 2: Convert to fraction form
    21,193.00/31,750.74 = 9,927.65/x
  3. Step 3: Cross multiply
    21,193.00x = 31,750.74 × 9,927.65
  4. Step 4: Simplify right side
    21,193.00x = 315,210,313.34
  5. Step 5: Solve for x
    x = 315,210,313.34/21,193.00
  6. Step 6: Final answer
    x = 14,873.32

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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.