Home / 27,643.17-38,147.67-15,710.49

Finding the Fourth Proportional to 27,643.17, 38,147.67 and 15,710.49

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Solution

The fourth proportional to 27,643.17, 38,147.67 and 15,710.49 is: 21,680.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,643.17 : 38,147.67 = 15,710.49 : x
  2. Step 2: Convert to fraction form
    27,643.17/38,147.67 = 15,710.49/x
  3. Step 3: Cross multiply
    27,643.17x = 38,147.67 × 15,710.49
  4. Step 4: Simplify right side
    27,643.17x = 599,318,588.06
  5. Step 5: Solve for x
    x = 599,318,588.06/27,643.17
  6. Step 6: Final answer
    x = 21,680.53

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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.