Home / 28,956.42-43,507.17-18,430.92

Finding the Fourth Proportional to 28,956.42, 43,507.17 and 18,430.92

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Solution

The fourth proportional to 28,956.42, 43,507.17 and 18,430.92 is: 27,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,956.42 : 43,507.17 = 18,430.92 : x
  2. Step 2: Convert to fraction form
    28,956.42/43,507.17 = 18,430.92/x
  3. Step 3: Cross multiply
    28,956.42x = 43,507.17 × 18,430.92
  4. Step 4: Simplify right side
    28,956.42x = 801,877,169.70
  5. Step 5: Solve for x
    x = 801,877,169.70/28,956.42
  6. Step 6: Final answer
    x = 27,692.55

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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.