Home / 28,993.55-40,009.95-16,418.30

Finding the Fourth Proportional to 28,993.55, 40,009.95 and 16,418.30

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Solution

The fourth proportional to 28,993.55, 40,009.95 and 16,418.30 is: 22,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,993.55 : 40,009.95 = 16,418.30 : x
  2. Step 2: Convert to fraction form
    28,993.55/40,009.95 = 16,418.30/x
  3. Step 3: Cross multiply
    28,993.55x = 40,009.95 × 16,418.30
  4. Step 4: Simplify right side
    28,993.55x = 656,895,162.04
  5. Step 5: Solve for x
    x = 656,895,162.04/28,993.55
  6. Step 6: Final answer
    x = 22,656.60

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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.