Home / 18,847.47-28,238.81-14,685.87

Finding the Fourth Proportional to 18,847.47, 28,238.81 and 14,685.87

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Solution

The fourth proportional to 18,847.47, 28,238.81 and 14,685.87 is: 22,003.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,847.47 : 28,238.81 = 14,685.87 : x
  2. Step 2: Convert to fraction form
    18,847.47/28,238.81 = 14,685.87/x
  3. Step 3: Cross multiply
    18,847.47x = 28,238.81 × 14,685.87
  4. Step 4: Simplify right side
    18,847.47x = 414,711,419.19
  5. Step 5: Solve for x
    x = 414,711,419.19/18,847.47
  6. Step 6: Final answer
    x = 22,003.56

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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.