Home / 28,331.79-39,097.08-15,584.96

Finding the Fourth Proportional to 28,331.79, 39,097.08 and 15,584.96

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Solution

The fourth proportional to 28,331.79, 39,097.08 and 15,584.96 is: 21,506.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331.79 : 39,097.08 = 15,584.96 : x
  2. Step 2: Convert to fraction form
    28,331.79/39,097.08 = 15,584.96/x
  3. Step 3: Cross multiply
    28,331.79x = 39,097.08 × 15,584.96
  4. Step 4: Simplify right side
    28,331.79x = 609,326,427.92
  5. Step 5: Solve for x
    x = 609,326,427.92/28,331.79
  6. Step 6: Final answer
    x = 21,506.81

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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.