Home / 28,650.40-39,535.57-15,902.58

Finding the Fourth Proportional to 28,650.40, 39,535.57 and 15,902.58

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Solution

The fourth proportional to 28,650.40, 39,535.57 and 15,902.58 is: 21,944.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,650.40 : 39,535.57 = 15,902.58 : x
  2. Step 2: Convert to fraction form
    28,650.40/39,535.57 = 15,902.58/x
  3. Step 3: Cross multiply
    28,650.40x = 39,535.57 × 15,902.58
  4. Step 4: Simplify right side
    28,650.40x = 628,717,564.77
  5. Step 5: Solve for x
    x = 628,717,564.77/28,650.40
  6. Step 6: Final answer
    x = 21,944.46

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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.