Home / 21,970.05-32,948.26-7,928.25

Finding the Fourth Proportional to 21,970.05, 32,948.26 and 7,928.25

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Solution

The fourth proportional to 21,970.05, 32,948.26 and 7,928.25 is: 11,889.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,970.05 : 32,948.26 = 7,928.25 : x
  2. Step 2: Convert to fraction form
    21,970.05/32,948.26 = 7,928.25/x
  3. Step 3: Cross multiply
    21,970.05x = 32,948.26 × 7,928.25
  4. Step 4: Simplify right side
    21,970.05x = 261,222,042.35
  5. Step 5: Solve for x
    x = 261,222,042.35/21,970.05
  6. Step 6: Final answer
    x = 11,889.92

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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.