Home / 27,820.07-38,391.69-15,244.55

Finding the Fourth Proportional to 27,820.07, 38,391.69 and 15,244.55

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Solution

The fourth proportional to 27,820.07, 38,391.69 and 15,244.55 is: 21,037.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,820.07 : 38,391.69 = 15,244.55 : x
  2. Step 2: Convert to fraction form
    27,820.07/38,391.69 = 15,244.55/x
  3. Step 3: Cross multiply
    27,820.07x = 38,391.69 × 15,244.55
  4. Step 4: Simplify right side
    27,820.07x = 585,263,769.61
  5. Step 5: Solve for x
    x = 585,263,769.61/27,820.07
  6. Step 6: Final answer
    x = 21,037.47

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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.