Home / 30,779.94-42,473.25-18,846.66

Finding the Fourth Proportional to 30,779.94, 42,473.25 and 18,846.66

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Solution

The fourth proportional to 30,779.94, 42,473.25 and 18,846.66 is: 26,006.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,779.94 : 42,473.25 = 18,846.66 : x
  2. Step 2: Convert to fraction form
    30,779.94/42,473.25 = 18,846.66/x
  3. Step 3: Cross multiply
    30,779.94x = 42,473.25 × 18,846.66
  4. Step 4: Simplify right side
    30,779.94x = 800,478,901.85
  5. Step 5: Solve for x
    x = 800,478,901.85/30,779.94
  6. Step 6: Final answer
    x = 26,006.51

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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.