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Finding the Fourth Proportional to 20,008, 27,410.86 and 19,260.40

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Solution

The fourth proportional to 20,008, 27,410.86 and 19,260.40 is: 26,386.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008 : 27,410.86 = 19,260.40 : x
  2. Step 2: Convert to fraction form
    20,008/27,410.86 = 19,260.40/x
  3. Step 3: Cross multiply
    20,008x = 27,410.86 × 19,260.40
  4. Step 4: Simplify right side
    20,008x = 527,944,127.94
  5. Step 5: Solve for x
    x = 527,944,127.94/20,008
  6. Step 6: Final answer
    x = 26,386.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.