Home / 31,914.40-47,929.20-30,877.60

Finding the Fourth Proportional to 31,914.40, 47,929.20 and 30,877.60

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Solution

The fourth proportional to 31,914.40, 47,929.20 and 30,877.60 is: 46,372.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,914.40 : 47,929.20 = 30,877.60 : x
  2. Step 2: Convert to fraction form
    31,914.40/47,929.20 = 30,877.60/x
  3. Step 3: Cross multiply
    31,914.40x = 47,929.20 × 30,877.60
  4. Step 4: Simplify right side
    31,914.40x = 1,479,938,665.92
  5. Step 5: Solve for x
    x = 1,479,938,665.92/31,914.40
  6. Step 6: Final answer
    x = 46,372.13

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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.