Home / 28,152.42-38,856.69-16,217.88

Finding the Fourth Proportional to 28,152.42, 38,856.69 and 16,217.88

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Solution

The fourth proportional to 28,152.42, 38,856.69 and 16,217.88 is: 22,384.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152.42 : 38,856.69 = 16,217.88 : x
  2. Step 2: Convert to fraction form
    28,152.42/38,856.69 = 16,217.88/x
  3. Step 3: Cross multiply
    28,152.42x = 38,856.69 × 16,217.88
  4. Step 4: Simplify right side
    28,152.42x = 630,173,135.62
  5. Step 5: Solve for x
    x = 630,173,135.62/28,152.42
  6. Step 6: Final answer
    x = 22,384.33

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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.