Home / 32,776.08-45,218.16-20,178.96

Finding the Fourth Proportional to 32,776.08, 45,218.16 and 20,178.96

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Solution

The fourth proportional to 32,776.08, 45,218.16 and 20,178.96 is: 27,839.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,776.08 : 45,218.16 = 20,178.96 : x
  2. Step 2: Convert to fraction form
    32,776.08/45,218.16 = 20,178.96/x
  3. Step 3: Cross multiply
    32,776.08x = 45,218.16 × 20,178.96
  4. Step 4: Simplify right side
    32,776.08x = 912,455,441.91
  5. Step 5: Solve for x
    x = 912,455,441.91/32,776.08
  6. Step 6: Final answer
    x = 27,839.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.