Home / 39,682.20-59,426.10-18,881.40

Finding the Fourth Proportional to 39,682.20, 59,426.10 and 18,881.40

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Solution

The fourth proportional to 39,682.20, 59,426.10 and 18,881.40 is: 28,275.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,682.20 : 59,426.10 = 18,881.40 : x
  2. Step 2: Convert to fraction form
    39,682.20/59,426.10 = 18,881.40/x
  3. Step 3: Cross multiply
    39,682.20x = 59,426.10 × 18,881.40
  4. Step 4: Simplify right side
    39,682.20x = 1,122,047,964.54
  5. Step 5: Solve for x
    x = 1,122,047,964.54/39,682.20
  6. Step 6: Final answer
    x = 28,275.85

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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.