Home / 30,290.28-45,420.15-17,644.11

Finding the Fourth Proportional to 30,290.28, 45,420.15 and 17,644.11

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Solution

The fourth proportional to 30,290.28, 45,420.15 and 17,644.11 is: 26,457.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,290.28 : 45,420.15 = 17,644.11 : x
  2. Step 2: Convert to fraction form
    30,290.28/45,420.15 = 17,644.11/x
  3. Step 3: Cross multiply
    30,290.28x = 45,420.15 × 17,644.11
  4. Step 4: Simplify right side
    30,290.28x = 801,398,122.82
  5. Step 5: Solve for x
    x = 801,398,122.82/30,290.28
  6. Step 6: Final answer
    x = 26,457.27

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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.