Home / 28,313.92-39,072.38-15,567.09

Finding the Fourth Proportional to 28,313.92, 39,072.38 and 15,567.09

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Solution

The fourth proportional to 28,313.92, 39,072.38 and 15,567.09 is: 21,482.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313.92 : 39,072.38 = 15,567.09 : x
  2. Step 2: Convert to fraction form
    28,313.92/39,072.38 = 15,567.09/x
  3. Step 3: Cross multiply
    28,313.92x = 39,072.38 × 15,567.09
  4. Step 4: Simplify right side
    28,313.92x = 608,243,246.05
  5. Step 5: Solve for x
    x = 608,243,246.05/28,313.92
  6. Step 6: Final answer
    x = 21,482.13

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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.