Home / 26,885.95-40,309.72-12,646.46

Finding the Fourth Proportional to 26,885.95, 40,309.72 and 12,646.46

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Solution

The fourth proportional to 26,885.95, 40,309.72 and 12,646.46 is: 18,960.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,885.95 : 40,309.72 = 12,646.46 : x
  2. Step 2: Convert to fraction form
    26,885.95/40,309.72 = 12,646.46/x
  3. Step 3: Cross multiply
    26,885.95x = 40,309.72 × 12,646.46
  4. Step 4: Simplify right side
    26,885.95x = 509,775,028.43
  5. Step 5: Solve for x
    x = 509,775,028.43/26,885.95
  6. Step 6: Final answer
    x = 18,960.65

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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.