Home / 35,381.61-53,072.70-12,908.38

Finding the Fourth Proportional to 35,381.61, 53,072.70 and 12,908.38

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Solution

The fourth proportional to 35,381.61, 53,072.70 and 12,908.38 is: 19,362.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,381.61 : 53,072.70 = 12,908.38 : x
  2. Step 2: Convert to fraction form
    35,381.61/53,072.70 = 12,908.38/x
  3. Step 3: Cross multiply
    35,381.61x = 53,072.70 × 12,908.38
  4. Step 4: Simplify right side
    35,381.61x = 685,082,579.23
  5. Step 5: Solve for x
    x = 685,082,579.23/35,381.61
  6. Step 6: Final answer
    x = 19,362.67

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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.