Home / 28,608.12-39,483.29-15,864.14

Finding the Fourth Proportional to 28,608.12, 39,483.29 and 15,864.14

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Solution

The fourth proportional to 28,608.12, 39,483.29 and 15,864.14 is: 21,894.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608.12 : 39,483.29 = 15,864.14 : x
  2. Step 2: Convert to fraction form
    28,608.12/39,483.29 = 15,864.14/x
  3. Step 3: Cross multiply
    28,608.12x = 39,483.29 × 15,864.14
  4. Step 4: Simplify right side
    28,608.12x = 626,368,578.59
  5. Step 5: Solve for x
    x = 626,368,578.59/28,608.12
  6. Step 6: Final answer
    x = 21,894.78

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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.