Home / 28,427.56-39,230.34-15,852.52

Finding the Fourth Proportional to 28,427.56, 39,230.34 and 15,852.52

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Solution

The fourth proportional to 28,427.56, 39,230.34 and 15,852.52 is: 21,876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,427.56 : 39,230.34 = 15,852.52 : x
  2. Step 2: Convert to fraction form
    28,427.56/39,230.34 = 15,852.52/x
  3. Step 3: Cross multiply
    28,427.56x = 39,230.34 × 15,852.52
  4. Step 4: Simplify right side
    28,427.56x = 621,899,749.46
  5. Step 5: Solve for x
    x = 621,899,749.46/28,427.56
  6. Step 6: Final answer
    x = 21,876.65

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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.