Home / 31,655.12-47,519.34-18,516.92

Finding the Fourth Proportional to 31,655.12, 47,519.34 and 18,516.92

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Solution

The fourth proportional to 31,655.12, 47,519.34 and 18,516.92 is: 27,796.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,655.12 : 47,519.34 = 18,516.92 : x
  2. Step 2: Convert to fraction form
    31,655.12/47,519.34 = 18,516.92/x
  3. Step 3: Cross multiply
    31,655.12x = 47,519.34 × 18,516.92
  4. Step 4: Simplify right side
    31,655.12x = 879,911,817.23
  5. Step 5: Solve for x
    x = 879,911,817.23/31,655.12
  6. Step 6: Final answer
    x = 27,796.82

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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.