Home / 39,704.20-59,459.10-18,903.40

Finding the Fourth Proportional to 39,704.20, 59,459.10 and 18,903.40

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Solution

The fourth proportional to 39,704.20, 59,459.10 and 18,903.40 is: 28,308.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,704.20 : 59,459.10 = 18,903.40 : x
  2. Step 2: Convert to fraction form
    39,704.20/59,459.10 = 18,903.40/x
  3. Step 3: Cross multiply
    39,704.20x = 59,459.10 × 18,903.40
  4. Step 4: Simplify right side
    39,704.20x = 1,123,979,150.94
  5. Step 5: Solve for x
    x = 1,123,979,150.94/39,704.20
  6. Step 6: Final answer
    x = 28,308.82

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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.