Home / 42,653.44-63,987.72-20,506.96

Finding the Fourth Proportional to 42,653.44, 63,987.72 and 20,506.96

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Solution

The fourth proportional to 42,653.44, 63,987.72 and 20,506.96 is: 30,764.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,653.44 : 63,987.72 = 20,506.96 : x
  2. Step 2: Convert to fraction form
    42,653.44/63,987.72 = 20,506.96/x
  3. Step 3: Cross multiply
    42,653.44x = 63,987.72 × 20,506.96
  4. Step 4: Simplify right side
    42,653.44x = 1,312,193,614.53
  5. Step 5: Solve for x
    x = 1,312,193,614.53/42,653.44
  6. Step 6: Final answer
    x = 30,764.07

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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.