Home / 28,999.90-40,039.13-22,273.49

Finding the Fourth Proportional to 28,999.90, 40,039.13 and 22,273.49

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Solution

The fourth proportional to 28,999.90, 40,039.13 and 22,273.49 is: 30,752.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,999.90 : 40,039.13 = 22,273.49 : x
  2. Step 2: Convert to fraction form
    28,999.90/40,039.13 = 22,273.49/x
  3. Step 3: Cross multiply
    28,999.90x = 40,039.13 × 22,273.49
  4. Step 4: Simplify right side
    28,999.90x = 891,811,161.66
  5. Step 5: Solve for x
    x = 891,811,161.66/28,999.90
  6. Step 6: Final answer
    x = 30,752.22

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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.