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Finding the Fourth Proportional to 21,492.69, 32,239.90 and 5,482.64

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Solution

The fourth proportional to 21,492.69, 32,239.90 and 5,482.64 is: 8,224.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,492.69 : 32,239.90 = 5,482.64 : x
  2. Step 2: Convert to fraction form
    21,492.69/32,239.90 = 5,482.64/x
  3. Step 3: Cross multiply
    21,492.69x = 32,239.90 × 5,482.64
  4. Step 4: Simplify right side
    21,492.69x = 176,759,852.79
  5. Step 5: Solve for x
    x = 176,759,852.79/21,492.69
  6. Step 6: Final answer
    x = 8,224.19

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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.