Home / 28,561.68-39,386.25-22,017.08

Finding the Fourth Proportional to 28,561.68, 39,386.25 and 22,017.08

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Solution

The fourth proportional to 28,561.68, 39,386.25 and 22,017.08 is: 30,361.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.68 : 39,386.25 = 22,017.08 : x
  2. Step 2: Convert to fraction form
    28,561.68/39,386.25 = 22,017.08/x
  3. Step 3: Cross multiply
    28,561.68x = 39,386.25 × 22,017.08
  4. Step 4: Simplify right side
    28,561.68x = 867,170,315.62
  5. Step 5: Solve for x
    x = 867,170,315.62/28,561.68
  6. Step 6: Final answer
    x = 30,361.32

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Double scale
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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.