Home / 32,786.10-49,215.60-20,320.20

Finding the Fourth Proportional to 32,786.10, 49,215.60 and 20,320.20

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Solution

The fourth proportional to 32,786.10, 49,215.60 and 20,320.20 is: 30,502.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,786.10 : 49,215.60 = 20,320.20 : x
  2. Step 2: Convert to fraction form
    32,786.10/49,215.60 = 20,320.20/x
  3. Step 3: Cross multiply
    32,786.10x = 49,215.60 × 20,320.20
  4. Step 4: Simplify right side
    32,786.10x = 1,000,070,835.12
  5. Step 5: Solve for x
    x = 1,000,070,835.12/32,786.10
  6. Step 6: Final answer
    x = 30,502.89

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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.