Home / 30,446.40-45,668.64-18,051.36

Finding the Fourth Proportional to 30,446.40, 45,668.64 and 18,051.36

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Solution

The fourth proportional to 30,446.40, 45,668.64 and 18,051.36 is: 27,076.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,446.40 : 45,668.64 = 18,051.36 : x
  2. Step 2: Convert to fraction form
    30,446.40/45,668.64 = 18,051.36/x
  3. Step 3: Cross multiply
    30,446.40x = 45,668.64 × 18,051.36
  4. Step 4: Simplify right side
    30,446.40x = 824,381,061.35
  5. Step 5: Solve for x
    x = 824,381,061.35/30,446.40
  6. Step 6: Final answer
    x = 27,076.47

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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.