Home / 39,976.76-55,166.48-22,071.38

Finding the Fourth Proportional to 39,976.76, 55,166.48 and 22,071.38

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Solution

The fourth proportional to 39,976.76, 55,166.48 and 22,071.38 is: 30,457.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,976.76 : 55,166.48 = 22,071.38 : x
  2. Step 2: Convert to fraction form
    39,976.76/55,166.48 = 22,071.38/x
  3. Step 3: Cross multiply
    39,976.76x = 55,166.48 × 22,071.38
  4. Step 4: Simplify right side
    39,976.76x = 1,217,600,343.34
  5. Step 5: Solve for x
    x = 1,217,600,343.34/39,976.76
  6. Step 6: Final answer
    x = 30,457.70

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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.