Home / 28,366.35-39,146.52-15,620.87

Finding the Fourth Proportional to 28,366.35, 39,146.52 and 15,620.87

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Solution

The fourth proportional to 28,366.35, 39,146.52 and 15,620.87 is: 21,557.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.35 : 39,146.52 = 15,620.87 : x
  2. Step 2: Convert to fraction form
    28,366.35/39,146.52 = 15,620.87/x
  3. Step 3: Cross multiply
    28,366.35x = 39,146.52 × 15,620.87
  4. Step 4: Simplify right side
    28,366.35x = 611,502,504.14
  5. Step 5: Solve for x
    x = 611,502,504.14/28,366.35
  6. Step 6: Final answer
    x = 21,557.32

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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.