Home / 28,223.64-38,939.76-16,285.41

Finding the Fourth Proportional to 28,223.64, 38,939.76 and 16,285.41

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Solution

The fourth proportional to 28,223.64, 38,939.76 and 16,285.41 is: 22,468.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,223.64 : 38,939.76 = 16,285.41 : x
  2. Step 2: Convert to fraction form
    28,223.64/38,939.76 = 16,285.41/x
  3. Step 3: Cross multiply
    28,223.64x = 38,939.76 × 16,285.41
  4. Step 4: Simplify right side
    28,223.64x = 634,149,956.90
  5. Step 5: Solve for x
    x = 634,149,956.90/28,223.64
  6. Step 6: Final answer
    x = 22,468.75

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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.