Home / 39,136.71-58,653.15-21,321.67

Finding the Fourth Proportional to 39,136.71, 58,653.15 and 21,321.67

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Solution

The fourth proportional to 39,136.71, 58,653.15 and 21,321.67 is: 31,954.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,136.71 : 58,653.15 = 21,321.67 : x
  2. Step 2: Convert to fraction form
    39,136.71/58,653.15 = 21,321.67/x
  3. Step 3: Cross multiply
    39,136.71x = 58,653.15 × 21,321.67
  4. Step 4: Simplify right side
    39,136.71x = 1,250,583,108.76
  5. Step 5: Solve for x
    x = 1,250,583,108.76/39,136.71
  6. Step 6: Final answer
    x = 31,954.22

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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.