Home / 31,147.20-46,720.80-19,337.40

Finding the Fourth Proportional to 31,147.20, 46,720.80 and 19,337.40

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Solution

The fourth proportional to 31,147.20, 46,720.80 and 19,337.40 is: 29,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,147.20 : 46,720.80 = 19,337.40 : x
  2. Step 2: Convert to fraction form
    31,147.20/46,720.80 = 19,337.40/x
  3. Step 3: Cross multiply
    31,147.20x = 46,720.80 × 19,337.40
  4. Step 4: Simplify right side
    31,147.20x = 903,458,797.92
  5. Step 5: Solve for x
    x = 903,458,797.92/31,147.20
  6. Step 6: Final answer
    x = 29,006.10

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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.