Home / 26,690.94-40,041.28-8,919.91

Finding the Fourth Proportional to 26,690.94, 40,041.28 and 8,919.91

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Solution

The fourth proportional to 26,690.94, 40,041.28 and 8,919.91 is: 13,381.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,690.94 : 40,041.28 = 8,919.91 : x
  2. Step 2: Convert to fraction form
    26,690.94/40,041.28 = 8,919.91/x
  3. Step 3: Cross multiply
    26,690.94x = 40,041.28 × 8,919.91
  4. Step 4: Simplify right side
    26,690.94x = 357,164,675.09
  5. Step 5: Solve for x
    x = 357,164,675.09/26,690.94
  6. Step 6: Final answer
    x = 13,381.49

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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.