Home / 30,924.09-42,691.01-19,605.15

Finding the Fourth Proportional to 30,924.09, 42,691.01 and 19,605.15

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Solution

The fourth proportional to 30,924.09, 42,691.01 and 19,605.15 is: 27,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,924.09 : 42,691.01 = 19,605.15 : x
  2. Step 2: Convert to fraction form
    30,924.09/42,691.01 = 19,605.15/x
  3. Step 3: Cross multiply
    30,924.09x = 42,691.01 × 19,605.15
  4. Step 4: Simplify right side
    30,924.09x = 836,963,556.68
  5. Step 5: Solve for x
    x = 836,963,556.68/30,924.09
  6. Step 6: Final answer
    x = 27,065.10

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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.