Home / 40,068.28-55,289.34-22,160.80

Finding the Fourth Proportional to 40,068.28, 55,289.34 and 22,160.80

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Solution

The fourth proportional to 40,068.28, 55,289.34 and 22,160.80 is: 30,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,068.28 : 55,289.34 = 22,160.80 : x
  2. Step 2: Convert to fraction form
    40,068.28/55,289.34 = 22,160.80/x
  3. Step 3: Cross multiply
    40,068.28x = 55,289.34 × 22,160.80
  4. Step 4: Simplify right side
    40,068.28x = 1,225,256,005.87
  5. Step 5: Solve for x
    x = 1,225,256,005.87/40,068.28
  6. Step 6: Final answer
    x = 30,579.20

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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.