Home / 21,761.04-30,030.19-12,329.58

Finding the Fourth Proportional to 21,761.04, 30,030.19 and 12,329.58

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Solution

The fourth proportional to 21,761.04, 30,030.19 and 12,329.58 is: 17,014.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,761.04 : 30,030.19 = 12,329.58 : x
  2. Step 2: Convert to fraction form
    21,761.04/30,030.19 = 12,329.58/x
  3. Step 3: Cross multiply
    21,761.04x = 30,030.19 × 12,329.58
  4. Step 4: Simplify right side
    21,761.04x = 370,259,630.02
  5. Step 5: Solve for x
    x = 370,259,630.02/21,761.04
  6. Step 6: Final answer
    x = 17,014.79

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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.