Home / 21,970.23-32,948.53-7,928.44

Finding the Fourth Proportional to 21,970.23, 32,948.53 and 7,928.44

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Solution

The fourth proportional to 21,970.23, 32,948.53 and 7,928.44 is: 11,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,970.23 : 32,948.53 = 7,928.44 : x
  2. Step 2: Convert to fraction form
    21,970.23/32,948.53 = 7,928.44/x
  3. Step 3: Cross multiply
    21,970.23x = 32,948.53 × 7,928.44
  4. Step 4: Simplify right side
    21,970.23x = 261,230,443.19
  5. Step 5: Solve for x
    x = 261,230,443.19/21,970.23
  6. Step 6: Final answer
    x = 11,890.20

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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.