Home / 28,977.09-43,472.41-8,985.53

Finding the Fourth Proportional to 28,977.09, 43,472.41 and 8,985.53

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Solution

The fourth proportional to 28,977.09, 43,472.41 and 8,985.53 is: 13,480.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977.09 : 43,472.41 = 8,985.53 : x
  2. Step 2: Convert to fraction form
    28,977.09/43,472.41 = 8,985.53/x
  3. Step 3: Cross multiply
    28,977.09x = 43,472.41 × 8,985.53
  4. Step 4: Simplify right side
    28,977.09x = 390,622,426.87
  5. Step 5: Solve for x
    x = 390,622,426.87/28,977.09
  6. Step 6: Final answer
    x = 13,480.39

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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.