Home / 28,619.68-42,929.52-13,054.72

Finding the Fourth Proportional to 28,619.68, 42,929.52 and 13,054.72

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Solution

The fourth proportional to 28,619.68, 42,929.52 and 13,054.72 is: 19,582.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,619.68 : 42,929.52 = 13,054.72 : x
  2. Step 2: Convert to fraction form
    28,619.68/42,929.52 = 13,054.72/x
  3. Step 3: Cross multiply
    28,619.68x = 42,929.52 × 13,054.72
  4. Step 4: Simplify right side
    28,619.68x = 560,432,863.33
  5. Step 5: Solve for x
    x = 560,432,863.33/28,619.68
  6. Step 6: Final answer
    x = 19,582.08

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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.