Home / 28,278.08-39,029.54-16,339.83

Finding the Fourth Proportional to 28,278.08, 39,029.54 and 16,339.83

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Solution

The fourth proportional to 28,278.08, 39,029.54 and 16,339.83 is: 22,552.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278.08 : 39,029.54 = 16,339.83 : x
  2. Step 2: Convert to fraction form
    28,278.08/39,029.54 = 16,339.83/x
  3. Step 3: Cross multiply
    28,278.08x = 39,029.54 × 16,339.83
  4. Step 4: Simplify right side
    28,278.08x = 637,735,966.88
  5. Step 5: Solve for x
    x = 637,735,966.88/28,278.08
  6. Step 6: Final answer
    x = 22,552.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.