Home / 28,999.40-40,038.44-22,272.99

Finding the Fourth Proportional to 28,999.40, 40,038.44 and 22,272.99

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Solution

The fourth proportional to 28,999.40, 40,038.44 and 22,272.99 is: 30,751.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,999.40 : 40,038.44 = 22,272.99 : x
  2. Step 2: Convert to fraction form
    28,999.40/40,038.44 = 22,272.99/x
  3. Step 3: Cross multiply
    28,999.40x = 40,038.44 × 22,272.99
  4. Step 4: Simplify right side
    28,999.40x = 891,775,662.37
  5. Step 5: Solve for x
    x = 891,775,662.37/28,999.40
  6. Step 6: Final answer
    x = 30,751.53

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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.