Home / 27,820.26-38,391.84-15,245.01

Finding the Fourth Proportional to 27,820.26, 38,391.84 and 15,245.01

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Solution

The fourth proportional to 27,820.26, 38,391.84 and 15,245.01 is: 21,038.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,820.26 : 38,391.84 = 15,245.01 : x
  2. Step 2: Convert to fraction form
    27,820.26/38,391.84 = 15,245.01/x
  3. Step 3: Cross multiply
    27,820.26x = 38,391.84 × 15,245.01
  4. Step 4: Simplify right side
    27,820.26x = 585,283,984.72
  5. Step 5: Solve for x
    x = 585,283,984.72/27,820.26
  6. Step 6: Final answer
    x = 21,038.05

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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.