Home / 31,292.72-46,939.06-20,783.25

Finding the Fourth Proportional to 31,292.72, 46,939.06 and 20,783.25

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Solution

The fourth proportional to 31,292.72, 46,939.06 and 20,783.25 is: 31,174.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,292.72 : 46,939.06 = 20,783.25 : x
  2. Step 2: Convert to fraction form
    31,292.72/46,939.06 = 20,783.25/x
  3. Step 3: Cross multiply
    31,292.72x = 46,939.06 × 20,783.25
  4. Step 4: Simplify right side
    31,292.72x = 975,546,166.79
  5. Step 5: Solve for x
    x = 975,546,166.79/31,292.72
  6. Step 6: Final answer
    x = 31,174.87

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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.