Home / 14,360.81-21,538.78-3,970.13

Finding the Fourth Proportional to 14,360.81, 21,538.78 and 3,970.13

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Solution

The fourth proportional to 14,360.81, 21,538.78 and 3,970.13 is: 5,954.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,360.81 : 21,538.78 = 3,970.13 : x
  2. Step 2: Convert to fraction form
    14,360.81/21,538.78 = 3,970.13/x
  3. Step 3: Cross multiply
    14,360.81x = 21,538.78 × 3,970.13
  4. Step 4: Simplify right side
    14,360.81x = 85,511,639.02
  5. Step 5: Solve for x
    x = 85,511,639.02/14,360.81
  6. Step 6: Final answer
    x = 5,954.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.