Home / 28,642.14-39,516.66-17,315.10

Finding the Fourth Proportional to 28,642.14, 39,516.66 and 17,315.10

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Solution

The fourth proportional to 28,642.14, 39,516.66 and 17,315.10 is: 23,889.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,642.14 : 39,516.66 = 17,315.10 : x
  2. Step 2: Convert to fraction form
    28,642.14/39,516.66 = 17,315.10/x
  3. Step 3: Cross multiply
    28,642.14x = 39,516.66 × 17,315.10
  4. Step 4: Simplify right side
    28,642.14x = 684,234,919.57
  5. Step 5: Solve for x
    x = 684,234,919.57/28,642.14
  6. Step 6: Final answer
    x = 23,889.10

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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.