Home / 30,227.80-45,341.70-20,896.60

Finding the Fourth Proportional to 30,227.80, 45,341.70 and 20,896.60

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Solution

The fourth proportional to 30,227.80, 45,341.70 and 20,896.60 is: 31,344.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,227.80 : 45,341.70 = 20,896.60 : x
  2. Step 2: Convert to fraction form
    30,227.80/45,341.70 = 20,896.60/x
  3. Step 3: Cross multiply
    30,227.80x = 45,341.70 × 20,896.60
  4. Step 4: Simplify right side
    30,227.80x = 947,487,368.22
  5. Step 5: Solve for x
    x = 947,487,368.22/30,227.80
  6. Step 6: Final answer
    x = 31,344.90

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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.