Home / 25,689.37-38,537.66-7,921.45

Finding the Fourth Proportional to 25,689.37, 38,537.66 and 7,921.45

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Solution

The fourth proportional to 25,689.37, 38,537.66 and 7,921.45 is: 11,883.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,689.37 : 38,537.66 = 7,921.45 : x
  2. Step 2: Convert to fraction form
    25,689.37/38,537.66 = 7,921.45/x
  3. Step 3: Cross multiply
    25,689.37x = 38,537.66 × 7,921.45
  4. Step 4: Simplify right side
    25,689.37x = 305,273,953.45
  5. Step 5: Solve for x
    x = 305,273,953.45/25,689.37
  6. Step 6: Final answer
    x = 11,883.28

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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.