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Finding the Fourth Proportional to 30,340.68, 45,543.42 and 17,218.68

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Solution

The fourth proportional to 30,340.68, 45,543.42 and 17,218.68 is: 25,846.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340.68 : 45,543.42 = 17,218.68 : x
  2. Step 2: Convert to fraction form
    30,340.68/45,543.42 = 17,218.68/x
  3. Step 3: Cross multiply
    30,340.68x = 45,543.42 × 17,218.68
  4. Step 4: Simplify right side
    30,340.68x = 784,197,575.09
  5. Step 5: Solve for x
    x = 784,197,575.09/30,340.68
  6. Step 6: Final answer
    x = 25,846.41

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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.