Home / 28,670.38-39,565.37-16,731.39

Finding the Fourth Proportional to 28,670.38, 39,565.37 and 16,731.39

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Solution

The fourth proportional to 28,670.38, 39,565.37 and 16,731.39 is: 23,089.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,670.38 : 39,565.37 = 16,731.39 : x
  2. Step 2: Convert to fraction form
    28,670.38/39,565.37 = 16,731.39/x
  3. Step 3: Cross multiply
    28,670.38x = 39,565.37 × 16,731.39
  4. Step 4: Simplify right side
    28,670.38x = 661,983,515.86
  5. Step 5: Solve for x
    x = 661,983,515.86/28,670.38
  6. Step 6: Final answer
    x = 23,089.46

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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.