Home / 30,430.87-45,626.77-12,673.83

Finding the Fourth Proportional to 30,430.87, 45,626.77 and 12,673.83

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Solution

The fourth proportional to 30,430.87, 45,626.77 and 12,673.83 is: 19,002.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,430.87 : 45,626.77 = 12,673.83 : x
  2. Step 2: Convert to fraction form
    30,430.87/45,626.77 = 12,673.83/x
  3. Step 3: Cross multiply
    30,430.87x = 45,626.77 × 12,673.83
  4. Step 4: Simplify right side
    30,430.87x = 578,265,926.43
  5. Step 5: Solve for x
    x = 578,265,926.43/30,430.87
  6. Step 6: Final answer
    x = 19,002.61

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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.