Home / 37,136.79-55,610.10-20,478.35

Finding the Fourth Proportional to 37,136.79, 55,610.10 and 20,478.35

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Solution

The fourth proportional to 37,136.79, 55,610.10 and 20,478.35 is: 30,665.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,136.79 : 55,610.10 = 20,478.35 : x
  2. Step 2: Convert to fraction form
    37,136.79/55,610.10 = 20,478.35/x
  3. Step 3: Cross multiply
    37,136.79x = 55,610.10 × 20,478.35
  4. Step 4: Simplify right side
    37,136.79x = 1,138,803,091.34
  5. Step 5: Solve for x
    x = 1,138,803,091.34/37,136.79
  6. Step 6: Final answer
    x = 30,665.09

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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.