Home / 31,605.24-47,394.67-12,872.57

Finding the Fourth Proportional to 31,605.24, 47,394.67 and 12,872.57

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Solution

The fourth proportional to 31,605.24, 47,394.67 and 12,872.57 is: 19,303.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,605.24 : 47,394.67 = 12,872.57 : x
  2. Step 2: Convert to fraction form
    31,605.24/47,394.67 = 12,872.57/x
  3. Step 3: Cross multiply
    31,605.24x = 47,394.67 × 12,872.57
  4. Step 4: Simplify right side
    31,605.24x = 610,091,228.78
  5. Step 5: Solve for x
    x = 610,091,228.78/31,605.24
  6. Step 6: Final answer
    x = 19,303.48

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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.