Home / 28,666.76-42,989.21-13,671.23

Finding the Fourth Proportional to 28,666.76, 42,989.21 and 13,671.23

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Solution

The fourth proportional to 28,666.76, 42,989.21 and 13,671.23 is: 20,501.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,666.76 : 42,989.21 = 13,671.23 : x
  2. Step 2: Convert to fraction form
    28,666.76/42,989.21 = 13,671.23/x
  3. Step 3: Cross multiply
    28,666.76x = 42,989.21 × 13,671.23
  4. Step 4: Simplify right side
    28,666.76x = 587,715,348.76
  5. Step 5: Solve for x
    x = 587,715,348.76/28,666.76
  6. Step 6: Final answer
    x = 20,501.63

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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.