Home / 28,999.24-40,038.22-22,272.84

Finding the Fourth Proportional to 28,999.24, 40,038.22 and 22,272.84

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Solution

The fourth proportional to 28,999.24, 40,038.22 and 22,272.84 is: 30,751.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,999.24 : 40,038.22 = 22,272.84 : x
  2. Step 2: Convert to fraction form
    28,999.24/40,038.22 = 22,272.84/x
  3. Step 3: Cross multiply
    28,999.24x = 40,038.22 × 22,272.84
  4. Step 4: Simplify right side
    28,999.24x = 891,764,867.94
  5. Step 5: Solve for x
    x = 891,764,867.94/28,999.24
  6. Step 6: Final answer
    x = 30,751.32

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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.