Home / 28,671.67-43,007.49-18,808.66

Finding the Fourth Proportional to 28,671.67, 43,007.49 and 18,808.66

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Solution

The fourth proportional to 28,671.67, 43,007.49 and 18,808.66 is: 28,212.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,671.67 : 43,007.49 = 18,808.66 : x
  2. Step 2: Convert to fraction form
    28,671.67/43,007.49 = 18,808.66/x
  3. Step 3: Cross multiply
    28,671.67x = 43,007.49 × 18,808.66
  4. Step 4: Simplify right side
    28,671.67x = 808,913,256.86
  5. Step 5: Solve for x
    x = 808,913,256.86/28,671.67
  6. Step 6: Final answer
    x = 28,212.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.