Home / 42,143.96-63,216.48-12,562.76

Finding the Fourth Proportional to 42,143.96, 63,216.48 and 12,562.76

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Solution

The fourth proportional to 42,143.96, 63,216.48 and 12,562.76 is: 18,844.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,143.96 : 63,216.48 = 12,562.76 : x
  2. Step 2: Convert to fraction form
    42,143.96/63,216.48 = 12,562.76/x
  3. Step 3: Cross multiply
    42,143.96x = 63,216.48 × 12,562.76
  4. Step 4: Simplify right side
    42,143.96x = 794,173,466.28
  5. Step 5: Solve for x
    x = 794,173,466.28/42,143.96
  6. Step 6: Final answer
    x = 18,844.30

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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.