Home / 19,588.30-29,379.40-6,440.58

Finding the Fourth Proportional to 19,588.30, 29,379.40 and 6,440.58

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Solution

The fourth proportional to 19,588.30, 29,379.40 and 6,440.58 is: 9,659.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,588.30 : 29,379.40 = 6,440.58 : x
  2. Step 2: Convert to fraction form
    19,588.30/29,379.40 = 6,440.58/x
  3. Step 3: Cross multiply
    19,588.30x = 29,379.40 × 6,440.58
  4. Step 4: Simplify right side
    19,588.30x = 189,220,376.05
  5. Step 5: Solve for x
    x = 189,220,376.05/19,588.30
  6. Step 6: Final answer
    x = 9,659.87

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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.