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Finding the Fourth Proportional to 30,017, 45,023.34 and 12,482.12

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Solution

The fourth proportional to 30,017, 45,023.34 and 12,482.12 is: 18,722.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,017 : 45,023.34 = 12,482.12 : x
  2. Step 2: Convert to fraction form
    30,017/45,023.34 = 12,482.12/x
  3. Step 3: Cross multiply
    30,017x = 45,023.34 × 12,482.12
  4. Step 4: Simplify right side
    30,017x = 561,986,732.68
  5. Step 5: Solve for x
    x = 561,986,732.68/30,017
  6. Step 6: Final answer
    x = 18,722.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.