Home / 28,228.98-38,959.20-16,295.52

Finding the Fourth Proportional to 28,228.98, 38,959.20 and 16,295.52

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Solution

The fourth proportional to 28,228.98, 38,959.20 and 16,295.52 is: 22,489.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228.98 : 38,959.20 = 16,295.52 : x
  2. Step 2: Convert to fraction form
    28,228.98/38,959.20 = 16,295.52/x
  3. Step 3: Cross multiply
    28,228.98x = 38,959.20 × 16,295.52
  4. Step 4: Simplify right side
    28,228.98x = 634,860,422.78
  5. Step 5: Solve for x
    x = 634,860,422.78/28,228.98
  6. Step 6: Final answer
    x = 22,489.67

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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.