Home / 43,223.76-64,748.88-19,818

Finding the Fourth Proportional to 43,223.76, 64,748.88 and 19,818

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Solution

The fourth proportional to 43,223.76, 64,748.88 and 19,818 is: 29,687.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,223.76 : 64,748.88 = 19,818 : x
  2. Step 2: Convert to fraction form
    43,223.76/64,748.88 = 19,818/x
  3. Step 3: Cross multiply
    43,223.76x = 64,748.88 × 19,818
  4. Step 4: Simplify right side
    43,223.76x = 1,283,193,303.84
  5. Step 5: Solve for x
    x = 1,283,193,303.84/43,223.76
  6. Step 6: Final answer
    x = 29,687.22

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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.