Home / 42,245.64-63,380.43-21,160.22

Finding the Fourth Proportional to 42,245.64, 63,380.43 and 21,160.22

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Solution

The fourth proportional to 42,245.64, 63,380.43 and 21,160.22 is: 31,746.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,245.64 : 63,380.43 = 21,160.22 : x
  2. Step 2: Convert to fraction form
    42,245.64/63,380.43 = 21,160.22/x
  3. Step 3: Cross multiply
    42,245.64x = 63,380.43 × 21,160.22
  4. Step 4: Simplify right side
    42,245.64x = 1,341,143,525.59
  5. Step 5: Solve for x
    x = 1,341,143,525.59/42,245.64
  6. Step 6: Final answer
    x = 31,746.32

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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.