Home / 27,928.56-38,558.40-19,427.52

Finding the Fourth Proportional to 27,928.56, 38,558.40 and 19,427.52

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Solution

The fourth proportional to 27,928.56, 38,558.40 and 19,427.52 is: 26,821.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,928.56 : 38,558.40 = 19,427.52 : x
  2. Step 2: Convert to fraction form
    27,928.56/38,558.40 = 19,427.52/x
  3. Step 3: Cross multiply
    27,928.56x = 38,558.40 × 19,427.52
  4. Step 4: Simplify right side
    27,928.56x = 749,094,087.17
  5. Step 5: Solve for x
    x = 749,094,087.17/27,928.56
  6. Step 6: Final answer
    x = 26,821.79

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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.