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Finding the Fourth Proportional to 30,347.64, 45,509.04 and 17,892.54

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Solution

The fourth proportional to 30,347.64, 45,509.04 and 17,892.54 is: 26,831.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,347.64 : 45,509.04 = 17,892.54 : x
  2. Step 2: Convert to fraction form
    30,347.64/45,509.04 = 17,892.54/x
  3. Step 3: Cross multiply
    30,347.64x = 45,509.04 × 17,892.54
  4. Step 4: Simplify right side
    30,347.64x = 814,272,318.56
  5. Step 5: Solve for x
    x = 814,272,318.56/30,347.64
  6. Step 6: Final answer
    x = 26,831.49

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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.