Home / 30,207.13-41,686.40-16,779.62

Finding the Fourth Proportional to 30,207.13, 41,686.40 and 16,779.62

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Solution

The fourth proportional to 30,207.13, 41,686.40 and 16,779.62 is: 23,156.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.13 : 41,686.40 = 16,779.62 : x
  2. Step 2: Convert to fraction form
    30,207.13/41,686.40 = 16,779.62/x
  3. Step 3: Cross multiply
    30,207.13x = 41,686.40 × 16,779.62
  4. Step 4: Simplify right side
    30,207.13x = 699,481,951.17
  5. Step 5: Solve for x
    x = 699,481,951.17/30,207.13
  6. Step 6: Final answer
    x = 23,156.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.