Home / 40,077.46-55,308.44-21,929.42

Finding the Fourth Proportional to 40,077.46, 55,308.44 and 21,929.42

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Solution

The fourth proportional to 40,077.46, 55,308.44 and 21,929.42 is: 30,263.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,077.46 : 55,308.44 = 21,929.42 : x
  2. Step 2: Convert to fraction form
    40,077.46/55,308.44 = 21,929.42/x
  3. Step 3: Cross multiply
    40,077.46x = 55,308.44 × 21,929.42
  4. Step 4: Simplify right side
    40,077.46x = 1,212,882,010.30
  5. Step 5: Solve for x
    x = 1,212,882,010.30/40,077.46
  6. Step 6: Final answer
    x = 30,263.45

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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.