Home / 31,289.67-46,934.48-12,569.70

Finding the Fourth Proportional to 31,289.67, 46,934.48 and 12,569.70

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Solution

The fourth proportional to 31,289.67, 46,934.48 and 12,569.70 is: 18,854.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.67 : 46,934.48 = 12,569.70 : x
  2. Step 2: Convert to fraction form
    31,289.67/46,934.48 = 12,569.70/x
  3. Step 3: Cross multiply
    31,289.67x = 46,934.48 × 12,569.70
  4. Step 4: Simplify right side
    31,289.67x = 589,952,270.41
  5. Step 5: Solve for x
    x = 589,952,270.41/31,289.67
  6. Step 6: Final answer
    x = 18,854.54

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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.