Home / 31,289.70-46,934.53-12,569.74

Finding the Fourth Proportional to 31,289.70, 46,934.53 and 12,569.74

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Solution

The fourth proportional to 31,289.70, 46,934.53 and 12,569.74 is: 18,854.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.70 : 46,934.53 = 12,569.74 : x
  2. Step 2: Convert to fraction form
    31,289.70/46,934.53 = 12,569.74/x
  3. Step 3: Cross multiply
    31,289.70x = 46,934.53 × 12,569.74
  4. Step 4: Simplify right side
    31,289.70x = 589,954,776.27
  5. Step 5: Solve for x
    x = 589,954,776.27/31,289.70
  6. Step 6: Final answer
    x = 18,854.60

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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.