Home / 21,522.76-32,281.74-7,480.36

Finding the Fourth Proportional to 21,522.76, 32,281.74 and 7,480.36

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Solution

The fourth proportional to 21,522.76, 32,281.74 and 7,480.36 is: 11,219.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,522.76 : 32,281.74 = 7,480.36 : x
  2. Step 2: Convert to fraction form
    21,522.76/32,281.74 = 7,480.36/x
  3. Step 3: Cross multiply
    21,522.76x = 32,281.74 × 7,480.36
  4. Step 4: Simplify right side
    21,522.76x = 241,479,036.63
  5. Step 5: Solve for x
    x = 241,479,036.63/21,522.76
  6. Step 6: Final answer
    x = 11,219.71

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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.