Home / 30,440.06-41,973.10-19,670.75

Finding the Fourth Proportional to 30,440.06, 41,973.10 and 19,670.75

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Solution

The fourth proportional to 30,440.06, 41,973.10 and 19,670.75 is: 27,123.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,440.06 : 41,973.10 = 19,670.75 : x
  2. Step 2: Convert to fraction form
    30,440.06/41,973.10 = 19,670.75/x
  3. Step 3: Cross multiply
    30,440.06x = 41,973.10 × 19,670.75
  4. Step 4: Simplify right side
    30,440.06x = 825,642,356.83
  5. Step 5: Solve for x
    x = 825,642,356.83/30,440.06
  6. Step 6: Final answer
    x = 27,123.55

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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.