Home / 20,368.53-28,104.84-12,413.25

Finding the Fourth Proportional to 20,368.53, 28,104.84 and 12,413.25

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Solution

The fourth proportional to 20,368.53, 28,104.84 and 12,413.25 is: 17,128.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368.53 : 28,104.84 = 12,413.25 : x
  2. Step 2: Convert to fraction form
    20,368.53/28,104.84 = 12,413.25/x
  3. Step 3: Cross multiply
    20,368.53x = 28,104.84 × 12,413.25
  4. Step 4: Simplify right side
    20,368.53x = 348,872,405.13
  5. Step 5: Solve for x
    x = 348,872,405.13/20,368.53
  6. Step 6: Final answer
    x = 17,128.01

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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.