Home / 28,612.17-39,486.83-15,866.01

Finding the Fourth Proportional to 28,612.17, 39,486.83 and 15,866.01

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Solution

The fourth proportional to 28,612.17, 39,486.83 and 15,866.01 is: 21,896.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,612.17 : 39,486.83 = 15,866.01 : x
  2. Step 2: Convert to fraction form
    28,612.17/39,486.83 = 15,866.01/x
  3. Step 3: Cross multiply
    28,612.17x = 39,486.83 × 15,866.01
  4. Step 4: Simplify right side
    28,612.17x = 626,498,360.32
  5. Step 5: Solve for x
    x = 626,498,360.32/28,612.17
  6. Step 6: Final answer
    x = 21,896.22

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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.