Home / 31,365.81-47,012.92-12,633.85

Finding the Fourth Proportional to 31,365.81, 47,012.92 and 12,633.85

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Solution

The fourth proportional to 31,365.81, 47,012.92 and 12,633.85 is: 18,936.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,365.81 : 47,012.92 = 12,633.85 : x
  2. Step 2: Convert to fraction form
    31,365.81/47,012.92 = 12,633.85/x
  3. Step 3: Cross multiply
    31,365.81x = 47,012.92 × 12,633.85
  4. Step 4: Simplify right side
    31,365.81x = 593,953,881.11
  5. Step 5: Solve for x
    x = 593,953,881.11/31,365.81
  6. Step 6: Final answer
    x = 18,936.35

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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.