Home / 14,027.56-21,041.40-3,639.40

Finding the Fourth Proportional to 14,027.56, 21,041.40 and 3,639.40

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Solution

The fourth proportional to 14,027.56, 21,041.40 and 3,639.40 is: 5,459.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,027.56 : 21,041.40 = 3,639.40 : x
  2. Step 2: Convert to fraction form
    14,027.56/21,041.40 = 3,639.40/x
  3. Step 3: Cross multiply
    14,027.56x = 21,041.40 × 3,639.40
  4. Step 4: Simplify right side
    14,027.56x = 76,578,071.16
  5. Step 5: Solve for x
    x = 76,578,071.16/14,027.56
  6. Step 6: Final answer
    x = 5,459.12

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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.