Home / 42,403.43-63,611.64-13,931.44

Finding the Fourth Proportional to 42,403.43, 63,611.64 and 13,931.44

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Solution

The fourth proportional to 42,403.43, 63,611.64 and 13,931.44 is: 20,899.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,403.43 : 63,611.64 = 13,931.44 : x
  2. Step 2: Convert to fraction form
    42,403.43/63,611.64 = 13,931.44/x
  3. Step 3: Cross multiply
    42,403.43x = 63,611.64 × 13,931.44
  4. Step 4: Simplify right side
    42,403.43x = 886,201,586.93
  5. Step 5: Solve for x
    x = 886,201,586.93/42,403.43
  6. Step 6: Final answer
    x = 20,899.29

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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.