Home / 28,110.80-38,720.16-19,597.68

Finding the Fourth Proportional to 28,110.80, 38,720.16 and 19,597.68

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Solution

The fourth proportional to 28,110.80, 38,720.16 and 19,597.68 is: 26,994.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.80 : 38,720.16 = 19,597.68 : x
  2. Step 2: Convert to fraction form
    28,110.80/38,720.16 = 19,597.68/x
  3. Step 3: Cross multiply
    28,110.80x = 38,720.16 × 19,597.68
  4. Step 4: Simplify right side
    28,110.80x = 758,825,305.23
  5. Step 5: Solve for x
    x = 758,825,305.23/28,110.80
  6. Step 6: Final answer
    x = 26,994.08

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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.