Home / 28,986.48-40,002.28-16,410.96

Finding the Fourth Proportional to 28,986.48, 40,002.28 and 16,410.96

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Solution

The fourth proportional to 28,986.48, 40,002.28 and 16,410.96 is: 22,647.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986.48 : 40,002.28 = 16,410.96 : x
  2. Step 2: Convert to fraction form
    28,986.48/40,002.28 = 16,410.96/x
  3. Step 3: Cross multiply
    28,986.48x = 40,002.28 × 16,410.96
  4. Step 4: Simplify right side
    28,986.48x = 656,475,816.99
  5. Step 5: Solve for x
    x = 656,475,816.99/28,986.48
  6. Step 6: Final answer
    x = 22,647.66

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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.