Home / 28,820.16-39,769.44-16,248

Finding the Fourth Proportional to 28,820.16, 39,769.44 and 16,248

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Solution

The fourth proportional to 28,820.16, 39,769.44 and 16,248 is: 22,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.16 : 39,769.44 = 16,248 : x
  2. Step 2: Convert to fraction form
    28,820.16/39,769.44 = 16,248/x
  3. Step 3: Cross multiply
    28,820.16x = 39,769.44 × 16,248
  4. Step 4: Simplify right side
    28,820.16x = 646,173,861.12
  5. Step 5: Solve for x
    x = 646,173,861.12/28,820.16
  6. Step 6: Final answer
    x = 22,420.90

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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.