Home / 30,868.98-42,597.09-17,440.80

Finding the Fourth Proportional to 30,868.98, 42,597.09 and 17,440.80

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Solution

The fourth proportional to 30,868.98, 42,597.09 and 17,440.80 is: 24,067.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,868.98 : 42,597.09 = 17,440.80 : x
  2. Step 2: Convert to fraction form
    30,868.98/42,597.09 = 17,440.80/x
  3. Step 3: Cross multiply
    30,868.98x = 42,597.09 × 17,440.80
  4. Step 4: Simplify right side
    30,868.98x = 742,927,327.27
  5. Step 5: Solve for x
    x = 742,927,327.27/30,868.98
  6. Step 6: Final answer
    x = 24,067.12

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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.