Home / 42,563.75-63,835.35-18,858.18

Finding the Fourth Proportional to 42,563.75, 63,835.35 and 18,858.18

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Solution

The fourth proportional to 42,563.75, 63,835.35 and 18,858.18 is: 28,282.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,563.75 : 63,835.35 = 18,858.18 : x
  2. Step 2: Convert to fraction form
    42,563.75/63,835.35 = 18,858.18/x
  3. Step 3: Cross multiply
    42,563.75x = 63,835.35 × 18,858.18
  4. Step 4: Simplify right side
    42,563.75x = 1,203,818,520.66
  5. Step 5: Solve for x
    x = 1,203,818,520.66/42,563.75
  6. Step 6: Final answer
    x = 28,282.72

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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.