Home / 28,219.30-38,929.23-16,886.52

Finding the Fourth Proportional to 28,219.30, 38,929.23 and 16,886.52

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Solution

The fourth proportional to 28,219.30, 38,929.23 and 16,886.52 is: 23,295.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.30 : 38,929.23 = 16,886.52 : x
  2. Step 2: Convert to fraction form
    28,219.30/38,929.23 = 16,886.52/x
  3. Step 3: Cross multiply
    28,219.30x = 38,929.23 × 16,886.52
  4. Step 4: Simplify right side
    28,219.30x = 657,379,220.98
  5. Step 5: Solve for x
    x = 657,379,220.98/28,219.30
  6. Step 6: Final answer
    x = 23,295.38

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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.