Home / 28,934.64-43,411.37-13,137.80

Finding the Fourth Proportional to 28,934.64, 43,411.37 and 13,137.80

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Solution

The fourth proportional to 28,934.64, 43,411.37 and 13,137.80 is: 19,710.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,934.64 : 43,411.37 = 13,137.80 : x
  2. Step 2: Convert to fraction form
    28,934.64/43,411.37 = 13,137.80/x
  3. Step 3: Cross multiply
    28,934.64x = 43,411.37 × 13,137.80
  4. Step 4: Simplify right side
    28,934.64x = 570,329,614.04
  5. Step 5: Solve for x
    x = 570,329,614.04/28,934.64
  6. Step 6: Final answer
    x = 19,710.96

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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.