Home / 30,204.90-45,300.06-12,670.02

Finding the Fourth Proportional to 30,204.90, 45,300.06 and 12,670.02

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Solution

The fourth proportional to 30,204.90, 45,300.06 and 12,670.02 is: 19,001.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,204.90 : 45,300.06 = 12,670.02 : x
  2. Step 2: Convert to fraction form
    30,204.90/45,300.06 = 12,670.02/x
  3. Step 3: Cross multiply
    30,204.90x = 45,300.06 × 12,670.02
  4. Step 4: Simplify right side
    30,204.90x = 573,952,666.20
  5. Step 5: Solve for x
    x = 573,952,666.20/30,204.90
  6. Step 6: Final answer
    x = 19,001.97

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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.