Home / 27,084.04-40,621.08-12,289.40

Finding the Fourth Proportional to 27,084.04, 40,621.08 and 12,289.40

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Solution

The fourth proportional to 27,084.04, 40,621.08 and 12,289.40 is: 18,431.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,084.04 : 40,621.08 = 12,289.40 : x
  2. Step 2: Convert to fraction form
    27,084.04/40,621.08 = 12,289.40/x
  3. Step 3: Cross multiply
    27,084.04x = 40,621.08 × 12,289.40
  4. Step 4: Simplify right side
    27,084.04x = 499,208,700.55
  5. Step 5: Solve for x
    x = 499,208,700.55/27,084.04
  6. Step 6: Final answer
    x = 18,431.84

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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.