Home / 39,975.87-55,166.76-22,070.89

Finding the Fourth Proportional to 39,975.87, 55,166.76 and 22,070.89

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Solution

The fourth proportional to 39,975.87, 55,166.76 and 22,070.89 is: 30,457.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,975.87 : 55,166.76 = 22,070.89 : x
  2. Step 2: Convert to fraction form
    39,975.87/55,166.76 = 22,070.89/x
  3. Step 3: Cross multiply
    39,975.87x = 55,166.76 × 22,070.89
  4. Step 4: Simplify right side
    39,975.87x = 1,217,579,491.62
  5. Step 5: Solve for x
    x = 1,217,579,491.62/39,975.87
  6. Step 6: Final answer
    x = 30,457.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.