Home / 40,289.96-55,599.78-22,385

Finding the Fourth Proportional to 40,289.96, 55,599.78 and 22,385

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Solution

The fourth proportional to 40,289.96, 55,599.78 and 22,385 is: 30,891.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,289.96 : 55,599.78 = 22,385 : x
  2. Step 2: Convert to fraction form
    40,289.96/55,599.78 = 22,385/x
  3. Step 3: Cross multiply
    40,289.96x = 55,599.78 × 22,385
  4. Step 4: Simplify right side
    40,289.96x = 1,244,601,075.30
  5. Step 5: Solve for x
    x = 1,244,601,075.30/40,289.96
  6. Step 6: Final answer
    x = 30,891.10

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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.