Home / 31,389.91-47,084.96-7,697.57

Finding the Fourth Proportional to 31,389.91, 47,084.96 and 7,697.57

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Solution

The fourth proportional to 31,389.91, 47,084.96 and 7,697.57 is: 11,546.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,389.91 : 47,084.96 = 7,697.57 : x
  2. Step 2: Convert to fraction form
    31,389.91/47,084.96 = 7,697.57/x
  3. Step 3: Cross multiply
    31,389.91x = 47,084.96 × 7,697.57
  4. Step 4: Simplify right side
    31,389.91x = 362,439,559.37
  5. Step 5: Solve for x
    x = 362,439,559.37/31,389.91
  6. Step 6: Final answer
    x = 11,546.37

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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.