Home / 43,018.56-64,528.92-20,827.80

Finding the Fourth Proportional to 43,018.56, 64,528.92 and 20,827.80

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Solution

The fourth proportional to 43,018.56, 64,528.92 and 20,827.80 is: 31,242.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,018.56 : 64,528.92 = 20,827.80 : x
  2. Step 2: Convert to fraction form
    43,018.56/64,528.92 = 20,827.80/x
  3. Step 3: Cross multiply
    43,018.56x = 64,528.92 × 20,827.80
  4. Step 4: Simplify right side
    43,018.56x = 1,343,995,439.98
  5. Step 5: Solve for x
    x = 1,343,995,439.98/43,018.56
  6. Step 6: Final answer
    x = 31,242.22

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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.