Home / 30,429.87-45,625.28-12,672.83

Finding the Fourth Proportional to 30,429.87, 45,625.28 and 12,672.83

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Solution

The fourth proportional to 30,429.87, 45,625.28 and 12,672.83 is: 19,001.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,429.87 : 45,625.28 = 12,672.83 : x
  2. Step 2: Convert to fraction form
    30,429.87/45,625.28 = 12,672.83/x
  3. Step 3: Cross multiply
    30,429.87x = 45,625.28 × 12,672.83
  4. Step 4: Simplify right side
    30,429.87x = 578,201,125.65
  5. Step 5: Solve for x
    x = 578,201,125.65/30,429.87
  6. Step 6: Final answer
    x = 19,001.10

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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.