Home / 28,005.42-38,647.18-16,070.64

Finding the Fourth Proportional to 28,005.42, 38,647.18 and 16,070.64

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Solution

The fourth proportional to 28,005.42, 38,647.18 and 16,070.64 is: 22,177.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,005.42 : 38,647.18 = 16,070.64 : x
  2. Step 2: Convert to fraction form
    28,005.42/38,647.18 = 16,070.64/x
  3. Step 3: Cross multiply
    28,005.42x = 38,647.18 × 16,070.64
  4. Step 4: Simplify right side
    28,005.42x = 621,084,791.96
  5. Step 5: Solve for x
    x = 621,084,791.96/28,005.42
  6. Step 6: Final answer
    x = 22,177.30

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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.