Home / 43,143.30-64,714.90-13,563.72

Finding the Fourth Proportional to 43,143.30, 64,714.90 and 13,563.72

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Solution

The fourth proportional to 43,143.30, 64,714.90 and 13,563.72 is: 20,345.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,143.30 : 64,714.90 = 13,563.72 : x
  2. Step 2: Convert to fraction form
    43,143.30/64,714.90 = 13,563.72/x
  3. Step 3: Cross multiply
    43,143.30x = 64,714.90 × 13,563.72
  4. Step 4: Simplify right side
    43,143.30x = 877,774,783.43
  5. Step 5: Solve for x
    x = 877,774,783.43/43,143.30
  6. Step 6: Final answer
    x = 20,345.56

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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.