Home / 42,364.08-63,504.79-20,171.50

Finding the Fourth Proportional to 42,364.08, 63,504.79 and 20,171.50

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Solution

The fourth proportional to 42,364.08, 63,504.79 and 20,171.50 is: 30,237.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,364.08 : 63,504.79 = 20,171.50 : x
  2. Step 2: Convert to fraction form
    42,364.08/63,504.79 = 20,171.50/x
  3. Step 3: Cross multiply
    42,364.08x = 63,504.79 × 20,171.50
  4. Step 4: Simplify right side
    42,364.08x = 1,280,986,662.29
  5. Step 5: Solve for x
    x = 1,280,986,662.29/42,364.08
  6. Step 6: Final answer
    x = 30,237.57

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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.