Home / 28,686.86-39,583.56-16,109.18

Finding the Fourth Proportional to 28,686.86, 39,583.56 and 16,109.18

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Solution

The fourth proportional to 28,686.86, 39,583.56 and 16,109.18 is: 22,228.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686.86 : 39,583.56 = 16,109.18 : x
  2. Step 2: Convert to fraction form
    28,686.86/39,583.56 = 16,109.18/x
  3. Step 3: Cross multiply
    28,686.86x = 39,583.56 × 16,109.18
  4. Step 4: Simplify right side
    28,686.86x = 637,658,693.08
  5. Step 5: Solve for x
    x = 637,658,693.08/28,686.86
  6. Step 6: Final answer
    x = 22,228.25

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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.