Home / 27,643.46-38,147.89-15,706.22

Finding the Fourth Proportional to 27,643.46, 38,147.89 and 15,706.22

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Solution

The fourth proportional to 27,643.46, 38,147.89 and 15,706.22 is: 21,674.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,643.46 : 38,147.89 = 15,706.22 : x
  2. Step 2: Convert to fraction form
    27,643.46/38,147.89 = 15,706.22/x
  3. Step 3: Cross multiply
    27,643.46x = 38,147.89 × 15,706.22
  4. Step 4: Simplify right side
    27,643.46x = 599,159,152.88
  5. Step 5: Solve for x
    x = 599,159,152.88/27,643.46
  6. Step 6: Final answer
    x = 21,674.54

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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.