Home / 39,739.60-59,555.13-20,031.49

Finding the Fourth Proportional to 39,739.60, 59,555.13 and 20,031.49

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Solution

The fourth proportional to 39,739.60, 59,555.13 and 20,031.49 is: 30,019.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,739.60 : 59,555.13 = 20,031.49 : x
  2. Step 2: Convert to fraction form
    39,739.60/59,555.13 = 20,031.49/x
  3. Step 3: Cross multiply
    39,739.60x = 59,555.13 × 20,031.49
  4. Step 4: Simplify right side
    39,739.60x = 1,192,977,991.04
  5. Step 5: Solve for x
    x = 1,192,977,991.04/39,739.60
  6. Step 6: Final answer
    x = 30,019.88

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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.