Home / 27,709.02-38,240.40-15,772.37

Finding the Fourth Proportional to 27,709.02, 38,240.40 and 15,772.37

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Solution

The fourth proportional to 27,709.02, 38,240.40 and 15,772.37 is: 21,766.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,709.02 : 38,240.40 = 15,772.37 : x
  2. Step 2: Convert to fraction form
    27,709.02/38,240.40 = 15,772.37/x
  3. Step 3: Cross multiply
    27,709.02x = 38,240.40 × 15,772.37
  4. Step 4: Simplify right side
    27,709.02x = 603,141,546.55
  5. Step 5: Solve for x
    x = 603,141,546.55/27,709.02
  6. Step 6: Final answer
    x = 21,766.98

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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.