Home / 31,605.48-47,435.45-12,895.83

Finding the Fourth Proportional to 31,605.48, 47,435.45 and 12,895.83

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Solution

The fourth proportional to 31,605.48, 47,435.45 and 12,895.83 is: 19,354.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,605.48 : 47,435.45 = 12,895.83 : x
  2. Step 2: Convert to fraction form
    31,605.48/47,435.45 = 12,895.83/x
  3. Step 3: Cross multiply
    31,605.48x = 47,435.45 × 12,895.83
  4. Step 4: Simplify right side
    31,605.48x = 611,719,434.69
  5. Step 5: Solve for x
    x = 611,719,434.69/31,605.48
  6. Step 6: Final answer
    x = 19,354.85

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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.