Home / 43,146.64-64,695.60-16,821.28

Finding the Fourth Proportional to 43,146.64, 64,695.60 and 16,821.28

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Solution

The fourth proportional to 43,146.64, 64,695.60 and 16,821.28 is: 25,222.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,146.64 : 64,695.60 = 16,821.28 : x
  2. Step 2: Convert to fraction form
    43,146.64/64,695.60 = 16,821.28/x
  3. Step 3: Cross multiply
    43,146.64x = 64,695.60 × 16,821.28
  4. Step 4: Simplify right side
    43,146.64x = 1,088,262,802.37
  5. Step 5: Solve for x
    x = 1,088,262,802.37/43,146.64
  6. Step 6: Final answer
    x = 25,222.42

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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.