Home / 20,237.10-27,925.16-11,283.78

Finding the Fourth Proportional to 20,237.10, 27,925.16 and 11,283.78

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Solution

The fourth proportional to 20,237.10, 27,925.16 and 11,283.78 is: 15,570.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.10 : 27,925.16 = 11,283.78 : x
  2. Step 2: Convert to fraction form
    20,237.10/27,925.16 = 11,283.78/x
  3. Step 3: Cross multiply
    20,237.10x = 27,925.16 × 11,283.78
  4. Step 4: Simplify right side
    20,237.10x = 315,101,361.90
  5. Step 5: Solve for x
    x = 315,101,361.90/20,237.10
  6. Step 6: Final answer
    x = 15,570.48

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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.