Home / 28,368.41-39,142.46-16,431.03

Finding the Fourth Proportional to 28,368.41, 39,142.46 and 16,431.03

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Solution

The fourth proportional to 28,368.41, 39,142.46 and 16,431.03 is: 22,671.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,368.41 : 39,142.46 = 16,431.03 : x
  2. Step 2: Convert to fraction form
    28,368.41/39,142.46 = 16,431.03/x
  3. Step 3: Cross multiply
    28,368.41x = 39,142.46 × 16,431.03
  4. Step 4: Simplify right side
    28,368.41x = 643,150,934.53
  5. Step 5: Solve for x
    x = 643,150,934.53/28,368.41
  6. Step 6: Final answer
    x = 22,671.38

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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.