Home / 28,973.52-39,983.40-16,399.44

Finding the Fourth Proportional to 28,973.52, 39,983.40 and 16,399.44

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Solution

The fourth proportional to 28,973.52, 39,983.40 and 16,399.44 is: 22,631.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973.52 : 39,983.40 = 16,399.44 : x
  2. Step 2: Convert to fraction form
    28,973.52/39,983.40 = 16,399.44/x
  3. Step 3: Cross multiply
    28,973.52x = 39,983.40 × 16,399.44
  4. Step 4: Simplify right side
    28,973.52x = 655,705,369.30
  5. Step 5: Solve for x
    x = 655,705,369.30/28,973.52
  6. Step 6: Final answer
    x = 22,631.19

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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.