Home / 28,612.44-39,483.18-15,866.28

Finding the Fourth Proportional to 28,612.44, 39,483.18 and 15,866.28

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Solution

The fourth proportional to 28,612.44, 39,483.18 and 15,866.28 is: 21,894.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,612.44 : 39,483.18 = 15,866.28 : x
  2. Step 2: Convert to fraction form
    28,612.44/39,483.18 = 15,866.28/x
  3. Step 3: Cross multiply
    28,612.44x = 39,483.18 × 15,866.28
  4. Step 4: Simplify right side
    28,612.44x = 626,451,189.17
  5. Step 5: Solve for x
    x = 626,451,189.17/28,612.44
  6. Step 6: Final answer
    x = 21,894.36

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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.