Home / 28,318.46-42,491.96-20,051.60

Finding the Fourth Proportional to 28,318.46, 42,491.96 and 20,051.60

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Solution

The fourth proportional to 28,318.46, 42,491.96 and 20,051.60 is: 30,087.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,318.46 : 42,491.96 = 20,051.60 : x
  2. Step 2: Convert to fraction form
    28,318.46/42,491.96 = 20,051.60/x
  3. Step 3: Cross multiply
    28,318.46x = 42,491.96 × 20,051.60
  4. Step 4: Simplify right side
    28,318.46x = 852,031,472.42
  5. Step 5: Solve for x
    x = 852,031,472.42/28,318.46
  6. Step 6: Final answer
    x = 30,087.50

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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.