Home / 28,327.62-39,089.42-15,580.59

Finding the Fourth Proportional to 28,327.62, 39,089.42 and 15,580.59

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Solution

The fourth proportional to 28,327.62, 39,089.42 and 15,580.59 is: 21,499.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327.62 : 39,089.42 = 15,580.59 : x
  2. Step 2: Convert to fraction form
    28,327.62/39,089.42 = 15,580.59/x
  3. Step 3: Cross multiply
    28,327.62x = 39,089.42 × 15,580.59
  4. Step 4: Simplify right side
    28,327.62x = 609,036,060.30
  5. Step 5: Solve for x
    x = 609,036,060.30/28,327.62
  6. Step 6: Final answer
    x = 21,499.72

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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.