Home / 26,203.68-39,340.08-12,178.80

Finding the Fourth Proportional to 26,203.68, 39,340.08 and 12,178.80

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Solution

The fourth proportional to 26,203.68, 39,340.08 and 12,178.80 is: 18,284.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,203.68 : 39,340.08 = 12,178.80 : x
  2. Step 2: Convert to fraction form
    26,203.68/39,340.08 = 12,178.80/x
  3. Step 3: Cross multiply
    26,203.68x = 39,340.08 × 12,178.80
  4. Step 4: Simplify right side
    26,203.68x = 479,114,966.30
  5. Step 5: Solve for x
    x = 479,114,966.30/26,203.68
  6. Step 6: Final answer
    x = 18,284.26

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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.