Home / 39,937.12-59,825.49-19,886.20

Finding the Fourth Proportional to 39,937.12, 59,825.49 and 19,886.20

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Solution

The fourth proportional to 39,937.12, 59,825.49 and 19,886.20 is: 29,789.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,937.12 : 59,825.49 = 19,886.20 : x
  2. Step 2: Convert to fraction form
    39,937.12/59,825.49 = 19,886.20/x
  3. Step 3: Cross multiply
    39,937.12x = 59,825.49 × 19,886.20
  4. Step 4: Simplify right side
    39,937.12x = 1,189,701,659.24
  5. Step 5: Solve for x
    x = 1,189,701,659.24/39,937.12
  6. Step 6: Final answer
    x = 29,789.37

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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.