Home / 30,136.82-45,209.30-12,602.52

Finding the Fourth Proportional to 30,136.82, 45,209.30 and 12,602.52

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Solution

The fourth proportional to 30,136.82, 45,209.30 and 12,602.52 is: 18,905.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,136.82 : 45,209.30 = 12,602.52 : x
  2. Step 2: Convert to fraction form
    30,136.82/45,209.30 = 12,602.52/x
  3. Step 3: Cross multiply
    30,136.82x = 45,209.30 × 12,602.52
  4. Step 4: Simplify right side
    30,136.82x = 569,751,044.42
  5. Step 5: Solve for x
    x = 569,751,044.42/30,136.82
  6. Step 6: Final answer
    x = 18,905.48

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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.