Home / 20,111.53-30,171.64-6,070.39

Finding the Fourth Proportional to 20,111.53, 30,171.64 and 6,070.39

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Solution

The fourth proportional to 20,111.53, 30,171.64 and 6,070.39 is: 9,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111.53 : 30,171.64 = 6,070.39 : x
  2. Step 2: Convert to fraction form
    20,111.53/30,171.64 = 6,070.39/x
  3. Step 3: Cross multiply
    20,111.53x = 30,171.64 × 6,070.39
  4. Step 4: Simplify right side
    20,111.53x = 183,153,621.74
  5. Step 5: Solve for x
    x = 183,153,621.74/20,111.53
  6. Step 6: Final answer
    x = 9,106.90

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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.