Home / 34,278.12-47,301.30-18,961.64

Finding the Fourth Proportional to 34,278.12, 47,301.30 and 18,961.64

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Solution

The fourth proportional to 34,278.12, 47,301.30 and 18,961.64 is: 26,165.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,278.12 : 47,301.30 = 18,961.64 : x
  2. Step 2: Convert to fraction form
    34,278.12/47,301.30 = 18,961.64/x
  3. Step 3: Cross multiply
    34,278.12x = 47,301.30 × 18,961.64
  4. Step 4: Simplify right side
    34,278.12x = 896,910,222.13
  5. Step 5: Solve for x
    x = 896,910,222.13/34,278.12
  6. Step 6: Final answer
    x = 26,165.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.