Home / 28,228.30-38,960.13-16,289.98

Finding the Fourth Proportional to 28,228.30, 38,960.13 and 16,289.98

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Solution

The fourth proportional to 28,228.30, 38,960.13 and 16,289.98 is: 22,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228.30 : 38,960.13 = 16,289.98 : x
  2. Step 2: Convert to fraction form
    28,228.30/38,960.13 = 16,289.98/x
  3. Step 3: Cross multiply
    28,228.30x = 38,960.13 × 16,289.98
  4. Step 4: Simplify right side
    28,228.30x = 634,659,738.50
  5. Step 5: Solve for x
    x = 634,659,738.50/28,228.30
  6. Step 6: Final answer
    x = 22,483.10

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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.