Home / 26,885.16-40,319.58-18,618.28

Finding the Fourth Proportional to 26,885.16, 40,319.58 and 18,618.28

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Solution

The fourth proportional to 26,885.16, 40,319.58 and 18,618.28 is: 27,921.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,885.16 : 40,319.58 = 18,618.28 : x
  2. Step 2: Convert to fraction form
    26,885.16/40,319.58 = 18,618.28/x
  3. Step 3: Cross multiply
    26,885.16x = 40,319.58 × 18,618.28
  4. Step 4: Simplify right side
    26,885.16x = 750,681,229.92
  5. Step 5: Solve for x
    x = 750,681,229.92/26,885.16
  6. Step 6: Final answer
    x = 27,921.77

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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.