Home / 28,997.70-40,036.10-22,271.31

Finding the Fourth Proportional to 28,997.70, 40,036.10 and 22,271.31

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Solution

The fourth proportional to 28,997.70, 40,036.10 and 22,271.31 is: 30,749.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.70 : 40,036.10 = 22,271.31 : x
  2. Step 2: Convert to fraction form
    28,997.70/40,036.10 = 22,271.31/x
  3. Step 3: Cross multiply
    28,997.70x = 40,036.10 × 22,271.31
  4. Step 4: Simplify right side
    28,997.70x = 891,656,394.29
  5. Step 5: Solve for x
    x = 891,656,394.29/28,997.70
  6. Step 6: Final answer
    x = 30,749.21

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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.