Home / 27,328.16-37,712.48-15,391.64

Finding the Fourth Proportional to 27,328.16, 37,712.48 and 15,391.64

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Solution

The fourth proportional to 27,328.16, 37,712.48 and 15,391.64 is: 21,240.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,328.16 : 37,712.48 = 15,391.64 : x
  2. Step 2: Convert to fraction form
    27,328.16/37,712.48 = 15,391.64/x
  3. Step 3: Cross multiply
    27,328.16x = 37,712.48 × 15,391.64
  4. Step 4: Simplify right side
    27,328.16x = 580,456,915.67
  5. Step 5: Solve for x
    x = 580,456,915.67/27,328.16
  6. Step 6: Final answer
    x = 21,240.25

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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.