Home / 21,273,512.40-31,863,029.40-18,439,160.40

Finding the Fourth Proportional to 21,273,512.40, 31,863,029.40 and 18,439,160.40

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Solution

The fourth proportional to 21,273,512.40, 31,863,029.40 and 18,439,160.40 is: 27,617,795.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273,512.40 : 31,863,029.40 = 18,439,160.40 : x
  2. Step 2: Convert to fraction form
    21,273,512.40/31,863,029.40 = 18,439,160.40/x
  3. Step 3: Cross multiply
    21,273,512.40x = 31,863,029.40 × 18,439,160.40
  4. Step 4: Simplify right side
    21,273,512.40x = 587,527,509,936,515.62
  5. Step 5: Solve for x
    x = 587,527,509,936,515.62/21,273,512.40
  6. Step 6: Final answer
    x = 27,617,795.26

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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.