Home / 31,395.40-47,093.20-7,703.07

Finding the Fourth Proportional to 31,395.40, 47,093.20 and 7,703.07

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Solution

The fourth proportional to 31,395.40, 47,093.20 and 7,703.07 is: 11,554.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,395.40 : 47,093.20 = 7,703.07 : x
  2. Step 2: Convert to fraction form
    31,395.40/47,093.20 = 7,703.07/x
  3. Step 3: Cross multiply
    31,395.40x = 47,093.20 × 7,703.07
  4. Step 4: Simplify right side
    31,395.40x = 362,762,020.27
  5. Step 5: Solve for x
    x = 362,762,020.27/31,395.40
  6. Step 6: Final answer
    x = 11,554.62

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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.