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Finding the Fourth Proportional to 30,497.40, 42,083.01 and 17,066.79

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Solution

The fourth proportional to 30,497.40, 42,083.01 and 17,066.79 is: 23,550.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,497.40 : 42,083.01 = 17,066.79 : x
  2. Step 2: Convert to fraction form
    30,497.40/42,083.01 = 17,066.79/x
  3. Step 3: Cross multiply
    30,497.40x = 42,083.01 × 17,066.79
  4. Step 4: Simplify right side
    30,497.40x = 718,221,894.24
  5. Step 5: Solve for x
    x = 718,221,894.24/30,497.40
  6. Step 6: Final answer
    x = 23,550.27

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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.