Home / 43,929.36-65,930.90-18,988.45

Finding the Fourth Proportional to 43,929.36, 65,930.90 and 18,988.45

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Solution

The fourth proportional to 43,929.36, 65,930.90 and 18,988.45 is: 28,498.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,929.36 : 65,930.90 = 18,988.45 : x
  2. Step 2: Convert to fraction form
    43,929.36/65,930.90 = 18,988.45/x
  3. Step 3: Cross multiply
    43,929.36x = 65,930.90 × 18,988.45
  4. Step 4: Simplify right side
    43,929.36x = 1,251,925,338.34
  5. Step 5: Solve for x
    x = 1,251,925,338.34/43,929.36
  6. Step 6: Final answer
    x = 28,498.60

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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.