Home / 21,361.74-29,443.95-14,285.58

Finding the Fourth Proportional to 21,361.74, 29,443.95 and 14,285.58

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Solution

The fourth proportional to 21,361.74, 29,443.95 and 14,285.58 is: 19,690.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,361.74 : 29,443.95 = 14,285.58 : x
  2. Step 2: Convert to fraction form
    21,361.74/29,443.95 = 14,285.58/x
  3. Step 3: Cross multiply
    21,361.74x = 29,443.95 × 14,285.58
  4. Step 4: Simplify right side
    21,361.74x = 420,623,903.24
  5. Step 5: Solve for x
    x = 420,623,903.24/21,361.74
  6. Step 6: Final answer
    x = 19,690.53

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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.