Home / 28,051.12-38,705.16-16,873.84

Finding the Fourth Proportional to 28,051.12, 38,705.16 and 16,873.84

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Solution

The fourth proportional to 28,051.12, 38,705.16 and 16,873.84 is: 23,282.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.12 : 38,705.16 = 16,873.84 : x
  2. Step 2: Convert to fraction form
    28,051.12/38,705.16 = 16,873.84/x
  3. Step 3: Cross multiply
    28,051.12x = 38,705.16 × 16,873.84
  4. Step 4: Simplify right side
    28,051.12x = 653,104,677.01
  5. Step 5: Solve for x
    x = 653,104,677.01/28,051.12
  6. Step 6: Final answer
    x = 23,282.66

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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.