Home / 42,027.72-63,020.10-13,937.64

Finding the Fourth Proportional to 42,027.72, 63,020.10 and 13,937.64

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Solution

The fourth proportional to 42,027.72, 63,020.10 and 13,937.64 is: 20,899.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,027.72 : 63,020.10 = 13,937.64 : x
  2. Step 2: Convert to fraction form
    42,027.72/63,020.10 = 13,937.64/x
  3. Step 3: Cross multiply
    42,027.72x = 63,020.10 × 13,937.64
  4. Step 4: Simplify right side
    42,027.72x = 878,351,466.56
  5. Step 5: Solve for x
    x = 878,351,466.56/42,027.72
  6. Step 6: Final answer
    x = 20,899.34

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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.