Home / 21,071.06-31,606.40-8,588.16

Finding the Fourth Proportional to 21,071.06, 31,606.40 and 8,588.16

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Solution

The fourth proportional to 21,071.06, 31,606.40 and 8,588.16 is: 12,882.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,071.06 : 31,606.40 = 8,588.16 : x
  2. Step 2: Convert to fraction form
    21,071.06/31,606.40 = 8,588.16/x
  3. Step 3: Cross multiply
    21,071.06x = 31,606.40 × 8,588.16
  4. Step 4: Simplify right side
    21,071.06x = 271,440,820.22
  5. Step 5: Solve for x
    x = 271,440,820.22/21,071.06
  6. Step 6: Final answer
    x = 12,882.16

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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.