Home / 28,530.88-39,360.54-19,102.48

Finding the Fourth Proportional to 28,530.88, 39,360.54 and 19,102.48

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Solution

The fourth proportional to 28,530.88, 39,360.54 and 19,102.48 is: 26,353.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,530.88 : 39,360.54 = 19,102.48 : x
  2. Step 2: Convert to fraction form
    28,530.88/39,360.54 = 19,102.48/x
  3. Step 3: Cross multiply
    28,530.88x = 39,360.54 × 19,102.48
  4. Step 4: Simplify right side
    28,530.88x = 751,883,928.14
  5. Step 5: Solve for x
    x = 751,883,928.14/28,530.88
  6. Step 6: Final answer
    x = 26,353.34

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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.