Home / 27,821.07-38,392.74-15,074.01

Finding the Fourth Proportional to 27,821.07, 38,392.74 and 15,074.01

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Solution

The fourth proportional to 27,821.07, 38,392.74 and 15,074.01 is: 20,801.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,821.07 : 38,392.74 = 15,074.01 : x
  2. Step 2: Convert to fraction form
    27,821.07/38,392.74 = 15,074.01/x
  3. Step 3: Cross multiply
    27,821.07x = 38,392.74 × 15,074.01
  4. Step 4: Simplify right side
    27,821.07x = 578,732,546.69
  5. Step 5: Solve for x
    x = 578,732,546.69/27,821.07
  6. Step 6: Final answer
    x = 20,801.95

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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.