Home / 28,152.89-38,865.05-16,213.92

Finding the Fourth Proportional to 28,152.89, 38,865.05 and 16,213.92

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Solution

The fourth proportional to 28,152.89, 38,865.05 and 16,213.92 is: 22,383.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152.89 : 38,865.05 = 16,213.92 : x
  2. Step 2: Convert to fraction form
    28,152.89/38,865.05 = 16,213.92/x
  3. Step 3: Cross multiply
    28,152.89x = 38,865.05 × 16,213.92
  4. Step 4: Simplify right side
    28,152.89x = 630,154,645.48
  5. Step 5: Solve for x
    x = 630,154,645.48/28,152.89
  6. Step 6: Final answer
    x = 22,383.30

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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.