Home / 28,331.93-39,097.99-15,585.31

Finding the Fourth Proportional to 28,331.93, 39,097.99 and 15,585.31

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Solution

The fourth proportional to 28,331.93, 39,097.99 and 15,585.31 is: 21,507.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331.93 : 39,097.99 = 15,585.31 : x
  2. Step 2: Convert to fraction form
    28,331.93/39,097.99 = 15,585.31/x
  3. Step 3: Cross multiply
    28,331.93x = 39,097.99 × 15,585.31
  4. Step 4: Simplify right side
    28,331.93x = 609,354,362.88
  5. Step 5: Solve for x
    x = 609,354,362.88/28,331.93
  6. Step 6: Final answer
    x = 21,507.69

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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.