Home / 26,923.68-40,385.52-12,880.40

Finding the Fourth Proportional to 26,923.68, 40,385.52 and 12,880.40

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Solution

The fourth proportional to 26,923.68, 40,385.52 and 12,880.40 is: 19,320.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,923.68 : 40,385.52 = 12,880.40 : x
  2. Step 2: Convert to fraction form
    26,923.68/40,385.52 = 12,880.40/x
  3. Step 3: Cross multiply
    26,923.68x = 40,385.52 × 12,880.40
  4. Step 4: Simplify right side
    26,923.68x = 520,181,651.81
  5. Step 5: Solve for x
    x = 520,181,651.81/26,923.68
  6. Step 6: Final answer
    x = 19,320.60

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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.