Home / 39,908.60-59,870.10-20,137.40

Finding the Fourth Proportional to 39,908.60, 59,870.10 and 20,137.40

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Solution

The fourth proportional to 39,908.60, 59,870.10 and 20,137.40 is: 30,209.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,908.60 : 59,870.10 = 20,137.40 : x
  2. Step 2: Convert to fraction form
    39,908.60/59,870.10 = 20,137.40/x
  3. Step 3: Cross multiply
    39,908.60x = 59,870.10 × 20,137.40
  4. Step 4: Simplify right side
    39,908.60x = 1,205,628,151.74
  5. Step 5: Solve for x
    x = 1,205,628,151.74/39,908.60
  6. Step 6: Final answer
    x = 30,209.73

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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.