Home / 28,730.99-39,644.48-16,153.31

Finding the Fourth Proportional to 28,730.99, 39,644.48 and 16,153.31

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Solution

The fourth proportional to 28,730.99, 39,644.48 and 16,153.31 is: 22,289.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,730.99 : 39,644.48 = 16,153.31 : x
  2. Step 2: Convert to fraction form
    28,730.99/39,644.48 = 16,153.31/x
  3. Step 3: Cross multiply
    28,730.99x = 39,644.48 × 16,153.31
  4. Step 4: Simplify right side
    28,730.99x = 640,389,296.24
  5. Step 5: Solve for x
    x = 640,389,296.24/28,730.99
  6. Step 6: Final answer
    x = 22,289.15

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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.