Home / 28,208.27-38,928.36-15,462.62

Finding the Fourth Proportional to 28,208.27, 38,928.36 and 15,462.62

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Solution

The fourth proportional to 28,208.27, 38,928.36 and 15,462.62 is: 21,338.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.27 : 38,928.36 = 15,462.62 : x
  2. Step 2: Convert to fraction form
    28,208.27/38,928.36 = 15,462.62/x
  3. Step 3: Cross multiply
    28,208.27x = 38,928.36 × 15,462.62
  4. Step 4: Simplify right side
    28,208.27x = 601,934,447.23
  5. Step 5: Solve for x
    x = 601,934,447.23/28,208.27
  6. Step 6: Final answer
    x = 21,338.93

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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.