Home / 28,568.81-39,424.96-15,993.56

Finding the Fourth Proportional to 28,568.81, 39,424.96 and 15,993.56

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Solution

The fourth proportional to 28,568.81, 39,424.96 and 15,993.56 is: 22,071.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,568.81 : 39,424.96 = 15,993.56 : x
  2. Step 2: Convert to fraction form
    28,568.81/39,424.96 = 15,993.56/x
  3. Step 3: Cross multiply
    28,568.81x = 39,424.96 × 15,993.56
  4. Step 4: Simplify right side
    28,568.81x = 630,545,581.81
  5. Step 5: Solve for x
    x = 630,545,581.81/28,568.81
  6. Step 6: Final answer
    x = 22,071.12

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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.