Home / 21,915.22-32,881.02-11,378.67

Finding the Fourth Proportional to 21,915.22, 32,881.02 and 11,378.67

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Solution

The fourth proportional to 21,915.22, 32,881.02 and 11,378.67 is: 17,072.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,915.22 : 32,881.02 = 11,378.67 : x
  2. Step 2: Convert to fraction form
    21,915.22/32,881.02 = 11,378.67/x
  3. Step 3: Cross multiply
    21,915.22x = 32,881.02 × 11,378.67
  4. Step 4: Simplify right side
    21,915.22x = 374,142,275.84
  5. Step 5: Solve for x
    x = 374,142,275.84/21,915.22
  6. Step 6: Final answer
    x = 17,072.26

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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.