Home / 28,272.66-39,023.28-16,343.43

Finding the Fourth Proportional to 28,272.66, 39,023.28 and 16,343.43

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Solution

The fourth proportional to 28,272.66, 39,023.28 and 16,343.43 is: 22,557.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,272.66 : 39,023.28 = 16,343.43 : x
  2. Step 2: Convert to fraction form
    28,272.66/39,023.28 = 16,343.43/x
  3. Step 3: Cross multiply
    28,272.66x = 39,023.28 × 16,343.43
  4. Step 4: Simplify right side
    28,272.66x = 637,774,245.05
  5. Step 5: Solve for x
    x = 637,774,245.05/28,272.66
  6. Step 6: Final answer
    x = 22,557.99

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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.