Home / 21,969.75-32,947.81-7,927.95

Finding the Fourth Proportional to 21,969.75, 32,947.81 and 7,927.95

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Solution

The fourth proportional to 21,969.75, 32,947.81 and 7,927.95 is: 11,889.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,969.75 : 32,947.81 = 7,927.95 : x
  2. Step 2: Convert to fraction form
    21,969.75/32,947.81 = 7,927.95/x
  3. Step 3: Cross multiply
    21,969.75x = 32,947.81 × 7,927.95
  4. Step 4: Simplify right side
    21,969.75x = 261,208,590.29
  5. Step 5: Solve for x
    x = 261,208,590.29/21,969.75
  6. Step 6: Final answer
    x = 11,889.47

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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.