Home / 28,283.45-39,005.08-19,222.38

Finding the Fourth Proportional to 28,283.45, 39,005.08 and 19,222.38

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Solution

The fourth proportional to 28,283.45, 39,005.08 and 19,222.38 is: 26,509.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,283.45 : 39,005.08 = 19,222.38 : x
  2. Step 2: Convert to fraction form
    28,283.45/39,005.08 = 19,222.38/x
  3. Step 3: Cross multiply
    28,283.45x = 39,005.08 × 19,222.38
  4. Step 4: Simplify right side
    28,283.45x = 749,770,421.63
  5. Step 5: Solve for x
    x = 749,770,421.63/28,283.45
  6. Step 6: Final answer
    x = 26,509.16

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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.