Home / 19,670.79-29,485.15-7,808.14

Finding the Fourth Proportional to 19,670.79, 29,485.15 and 7,808.14

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Solution

The fourth proportional to 19,670.79, 29,485.15 and 7,808.14 is: 11,703.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.79 : 29,485.15 = 7,808.14 : x
  2. Step 2: Convert to fraction form
    19,670.79/29,485.15 = 7,808.14/x
  3. Step 3: Cross multiply
    19,670.79x = 29,485.15 × 7,808.14
  4. Step 4: Simplify right side
    19,670.79x = 230,224,179.12
  5. Step 5: Solve for x
    x = 230,224,179.12/19,670.79
  6. Step 6: Final answer
    x = 11,703.86

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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.