Home / 28,561.41-39,429.05-17,956.89

Finding the Fourth Proportional to 28,561.41, 39,429.05 and 17,956.89

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Solution

The fourth proportional to 28,561.41, 39,429.05 and 17,956.89 is: 24,789.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.41 : 39,429.05 = 17,956.89 : x
  2. Step 2: Convert to fraction form
    28,561.41/39,429.05 = 17,956.89/x
  3. Step 3: Cross multiply
    28,561.41x = 39,429.05 × 17,956.89
  4. Step 4: Simplify right side
    28,561.41x = 708,023,113.65
  5. Step 5: Solve for x
    x = 708,023,113.65/28,561.41
  6. Step 6: Final answer
    x = 24,789.50

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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.