Home / 28,990.24-40,007.52-16,243.96

Finding the Fourth Proportional to 28,990.24, 40,007.52 and 16,243.96

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Solution

The fourth proportional to 28,990.24, 40,007.52 and 16,243.96 is: 22,417.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,990.24 : 40,007.52 = 16,243.96 : x
  2. Step 2: Convert to fraction form
    28,990.24/40,007.52 = 16,243.96/x
  3. Step 3: Cross multiply
    28,990.24x = 40,007.52 × 16,243.96
  4. Step 4: Simplify right side
    28,990.24x = 649,880,554.58
  5. Step 5: Solve for x
    x = 649,880,554.58/28,990.24
  6. Step 6: Final answer
    x = 22,417.22

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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.