Home / 28,558.08-39,419.04-17,956.80

Finding the Fourth Proportional to 28,558.08, 39,419.04 and 17,956.80

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Solution

The fourth proportional to 28,558.08, 39,419.04 and 17,956.80 is: 24,785.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,558.08 : 39,419.04 = 17,956.80 : x
  2. Step 2: Convert to fraction form
    28,558.08/39,419.04 = 17,956.80/x
  3. Step 3: Cross multiply
    28,558.08x = 39,419.04 × 17,956.80
  4. Step 4: Simplify right side
    28,558.08x = 707,839,817.47
  5. Step 5: Solve for x
    x = 707,839,817.47/28,558.08
  6. Step 6: Final answer
    x = 24,785.97

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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.