Home / 19,699.30-29,549.34-10,989.64

Finding the Fourth Proportional to 19,699.30, 29,549.34 and 10,989.64

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Solution

The fourth proportional to 19,699.30, 29,549.34 and 10,989.64 is: 16,484.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,699.30 : 29,549.34 = 10,989.64 : x
  2. Step 2: Convert to fraction form
    19,699.30/29,549.34 = 10,989.64/x
  3. Step 3: Cross multiply
    19,699.30x = 29,549.34 × 10,989.64
  4. Step 4: Simplify right side
    19,699.30x = 324,736,608.84
  5. Step 5: Solve for x
    x = 324,736,608.84/19,699.30
  6. Step 6: Final answer
    x = 16,484.68

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1.5x scale

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.