Home / 27,708.91-38,236.53-15,133.66

Finding the Fourth Proportional to 27,708.91, 38,236.53 and 15,133.66

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Solution

The fourth proportional to 27,708.91, 38,236.53 and 15,133.66 is: 20,883.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,708.91 : 38,236.53 = 15,133.66 : x
  2. Step 2: Convert to fraction form
    27,708.91/38,236.53 = 15,133.66/x
  3. Step 3: Cross multiply
    27,708.91x = 38,236.53 × 15,133.66
  4. Step 4: Simplify right side
    27,708.91x = 578,658,644.60
  5. Step 5: Solve for x
    x = 578,658,644.60/27,708.91
  6. Step 6: Final answer
    x = 20,883.49

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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.