Home / 47,709.32-71,563.96-14,428.64

Finding the Fourth Proportional to 47,709.32, 71,563.96 and 14,428.64

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Solution

The fourth proportional to 47,709.32, 71,563.96 and 14,428.64 is: 21,642.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,709.32 : 71,563.96 = 14,428.64 : x
  2. Step 2: Convert to fraction form
    47,709.32/71,563.96 = 14,428.64/x
  3. Step 3: Cross multiply
    47,709.32x = 71,563.96 × 14,428.64
  4. Step 4: Simplify right side
    47,709.32x = 1,032,570,615.81
  5. Step 5: Solve for x
    x = 1,032,570,615.81/47,709.32
  6. Step 6: Final answer
    x = 21,642.95

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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.