Home / 30,207.39-41,686.74-16,779.87

Finding the Fourth Proportional to 30,207.39, 41,686.74 and 16,779.87

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Solution

The fourth proportional to 30,207.39, 41,686.74 and 16,779.87 is: 23,156.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.39 : 41,686.74 = 16,779.87 : x
  2. Step 2: Convert to fraction form
    30,207.39/41,686.74 = 16,779.87/x
  3. Step 3: Cross multiply
    30,207.39x = 41,686.74 × 16,779.87
  4. Step 4: Simplify right side
    30,207.39x = 699,498,077.92
  5. Step 5: Solve for x
    x = 699,498,077.92/30,207.39
  6. Step 6: Final answer
    x = 23,156.52

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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.