Home / 20,903.68-28,847.64-11,472.58

Finding the Fourth Proportional to 20,903.68, 28,847.64 and 11,472.58

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Solution

The fourth proportional to 20,903.68, 28,847.64 and 11,472.58 is: 15,832.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.68 : 28,847.64 = 11,472.58 : x
  2. Step 2: Convert to fraction form
    20,903.68/28,847.64 = 11,472.58/x
  3. Step 3: Cross multiply
    20,903.68x = 28,847.64 × 11,472.58
  4. Step 4: Simplify right side
    20,903.68x = 330,956,857.71
  5. Step 5: Solve for x
    x = 330,956,857.71/20,903.68
  6. Step 6: Final answer
    x = 15,832.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.