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Finding the Fourth Proportional to 21,358.96, 32,054.48 and 8,045.09

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Solution

The fourth proportional to 21,358.96, 32,054.48 and 8,045.09 is: 12,073.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,358.96 : 32,054.48 = 8,045.09 : x
  2. Step 2: Convert to fraction form
    21,358.96/32,054.48 = 8,045.09/x
  3. Step 3: Cross multiply
    21,358.96x = 32,054.48 × 8,045.09
  4. Step 4: Simplify right side
    21,358.96x = 257,881,136.28
  5. Step 5: Solve for x
    x = 257,881,136.28/21,358.96
  6. Step 6: Final answer
    x = 12,073.67

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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.