Home / 30,730.50-46,134.66-18,855.10

Finding the Fourth Proportional to 30,730.50, 46,134.66 and 18,855.10

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Solution

The fourth proportional to 30,730.50, 46,134.66 and 18,855.10 is: 28,306.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,730.50 : 46,134.66 = 18,855.10 : x
  2. Step 2: Convert to fraction form
    30,730.50/46,134.66 = 18,855.10/x
  3. Step 3: Cross multiply
    30,730.50x = 46,134.66 × 18,855.10
  4. Step 4: Simplify right side
    30,730.50x = 869,873,627.77
  5. Step 5: Solve for x
    x = 869,873,627.77/30,730.50
  6. Step 6: Final answer
    x = 28,306.52

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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.