Home / 31,775.72-43,852.57-18,347.54

Finding the Fourth Proportional to 31,775.72, 43,852.57 and 18,347.54

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Solution

The fourth proportional to 31,775.72, 43,852.57 and 18,347.54 is: 25,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,775.72 : 43,852.57 = 18,347.54 : x
  2. Step 2: Convert to fraction form
    31,775.72/43,852.57 = 18,347.54/x
  3. Step 3: Cross multiply
    31,775.72x = 43,852.57 × 18,347.54
  4. Step 4: Simplify right side
    31,775.72x = 804,586,782.18
  5. Step 5: Solve for x
    x = 804,586,782.18/31,775.72
  6. Step 6: Final answer
    x = 25,320.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.