Home / 21,071.44-31,607.36-8,588.94

Finding the Fourth Proportional to 21,071.44, 31,607.36 and 8,588.94

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Solution

The fourth proportional to 21,071.44, 31,607.36 and 8,588.94 is: 12,883.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,071.44 : 31,607.36 = 8,588.94 : x
  2. Step 2: Convert to fraction form
    21,071.44/31,607.36 = 8,588.94/x
  3. Step 3: Cross multiply
    21,071.44x = 31,607.36 × 8,588.94
  4. Step 4: Simplify right side
    21,071.44x = 271,473,718.60
  5. Step 5: Solve for x
    x = 271,473,718.60/21,071.44
  6. Step 6: Final answer
    x = 12,883.49

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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.