Home / 28,997.90-40,036.37-22,271.49

Finding the Fourth Proportional to 28,997.90, 40,036.37 and 22,271.49

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Solution

The fourth proportional to 28,997.90, 40,036.37 and 22,271.49 is: 30,749.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.90 : 40,036.37 = 22,271.49 : x
  2. Step 2: Convert to fraction form
    28,997.90/40,036.37 = 22,271.49/x
  3. Step 3: Cross multiply
    28,997.90x = 40,036.37 × 22,271.49
  4. Step 4: Simplify right side
    28,997.90x = 891,669,502.73
  5. Step 5: Solve for x
    x = 891,669,502.73/28,997.90
  6. Step 6: Final answer
    x = 30,749.46

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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.