Home / 19,942.77-29,678.77-19,278.37

Finding the Fourth Proportional to 19,942.77, 29,678.77 and 19,278.37

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Solution

The fourth proportional to 19,942.77, 29,678.77 and 19,278.37 is: 28,690.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,942.77 : 29,678.77 = 19,278.37 : x
  2. Step 2: Convert to fraction form
    19,942.77/29,678.77 = 19,278.37/x
  3. Step 3: Cross multiply
    19,942.77x = 29,678.77 × 19,278.37
  4. Step 4: Simplify right side
    19,942.77x = 572,158,370.40
  5. Step 5: Solve for x
    x = 572,158,370.40/19,942.77
  6. Step 6: Final answer
    x = 28,690.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.