Home / 21,295.14-29,380.95-12,342.18

Finding the Fourth Proportional to 21,295.14, 29,380.95 and 12,342.18

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Solution

The fourth proportional to 21,295.14, 29,380.95 and 12,342.18 is: 17,028.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.14 : 29,380.95 = 12,342.18 : x
  2. Step 2: Convert to fraction form
    21,295.14/29,380.95 = 12,342.18/x
  3. Step 3: Cross multiply
    21,295.14x = 29,380.95 × 12,342.18
  4. Step 4: Simplify right side
    21,295.14x = 362,624,973.47
  5. Step 5: Solve for x
    x = 362,624,973.47/21,295.14
  6. Step 6: Final answer
    x = 17,028.53

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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.