Home / 19,673.12-29,509.60-4,881.76

Finding the Fourth Proportional to 19,673.12, 29,509.60 and 4,881.76

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Solution

The fourth proportional to 19,673.12, 29,509.60 and 4,881.76 is: 7,322.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,673.12 : 29,509.60 = 4,881.76 : x
  2. Step 2: Convert to fraction form
    19,673.12/29,509.60 = 4,881.76/x
  3. Step 3: Cross multiply
    19,673.12x = 29,509.60 × 4,881.76
  4. Step 4: Simplify right side
    19,673.12x = 144,058,784.90
  5. Step 5: Solve for x
    x = 144,058,784.90/19,673.12
  6. Step 6: Final answer
    x = 7,322.62

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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.