Home / 30,206.90-45,303.06-12,672.02

Finding the Fourth Proportional to 30,206.90, 45,303.06 and 12,672.02

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Solution

The fourth proportional to 30,206.90, 45,303.06 and 12,672.02 is: 19,004.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,206.90 : 45,303.06 = 12,672.02 : x
  2. Step 2: Convert to fraction form
    30,206.90/45,303.06 = 12,672.02/x
  3. Step 3: Cross multiply
    30,206.90x = 45,303.06 × 12,672.02
  4. Step 4: Simplify right side
    30,206.90x = 574,081,282.38
  5. Step 5: Solve for x
    x = 574,081,282.38/30,206.90
  6. Step 6: Final answer
    x = 19,004.97

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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.