Home / 31,890.56-47,846.09-9,708.23

Finding the Fourth Proportional to 31,890.56, 47,846.09 and 9,708.23

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Solution

The fourth proportional to 31,890.56, 47,846.09 and 9,708.23 is: 14,565.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,890.56 : 47,846.09 = 9,708.23 : x
  2. Step 2: Convert to fraction form
    31,890.56/47,846.09 = 9,708.23/x
  3. Step 3: Cross multiply
    31,890.56x = 47,846.09 × 9,708.23
  4. Step 4: Simplify right side
    31,890.56x = 464,500,855.64
  5. Step 5: Solve for x
    x = 464,500,855.64/31,890.56
  6. Step 6: Final answer
    x = 14,565.47

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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.