Home / 31,502.61-47,273.69-12,782.73

Finding the Fourth Proportional to 31,502.61, 47,273.69 and 12,782.73

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Solution

The fourth proportional to 31,502.61, 47,273.69 and 12,782.73 is: 19,182.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,502.61 : 47,273.69 = 12,782.73 : x
  2. Step 2: Convert to fraction form
    31,502.61/47,273.69 = 12,782.73/x
  3. Step 3: Cross multiply
    31,502.61x = 47,273.69 × 12,782.73
  4. Step 4: Simplify right side
    31,502.61x = 604,286,815.37
  5. Step 5: Solve for x
    x = 604,286,815.37/31,502.61
  6. Step 6: Final answer
    x = 19,182.12

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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.