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Finding the Fourth Proportional to 22,089, 30,482.82 and 12,153

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Solution

The fourth proportional to 22,089, 30,482.82 and 12,153 is: 16,771.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,089 : 30,482.82 = 12,153 : x
  2. Step 2: Convert to fraction form
    22,089/30,482.82 = 12,153/x
  3. Step 3: Cross multiply
    22,089x = 30,482.82 × 12,153
  4. Step 4: Simplify right side
    22,089x = 370,457,711.46
  5. Step 5: Solve for x
    x = 370,457,711.46/22,089
  6. Step 6: Final answer
    x = 16,771.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.