Home / 28,913.76-39,901.44-16,977.36

Finding the Fourth Proportional to 28,913.76, 39,901.44 and 16,977.36

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Solution

The fourth proportional to 28,913.76, 39,901.44 and 16,977.36 is: 23,429.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913.76 : 39,901.44 = 16,977.36 : x
  2. Step 2: Convert to fraction form
    28,913.76/39,901.44 = 16,977.36/x
  3. Step 3: Cross multiply
    28,913.76x = 39,901.44 × 16,977.36
  4. Step 4: Simplify right side
    28,913.76x = 677,421,111.40
  5. Step 5: Solve for x
    x = 677,421,111.40/28,913.76
  6. Step 6: Final answer
    x = 23,429.02

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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.