Home / 15,389.81-23,085.43-4,715.41

Finding the Fourth Proportional to 15,389.81, 23,085.43 and 4,715.41

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Solution

The fourth proportional to 15,389.81, 23,085.43 and 4,715.41 is: 7,073.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389.81 : 23,085.43 = 4,715.41 : x
  2. Step 2: Convert to fraction form
    15,389.81/23,085.43 = 4,715.41/x
  3. Step 3: Cross multiply
    15,389.81x = 23,085.43 × 4,715.41
  4. Step 4: Simplify right side
    15,389.81x = 108,857,137.24
  5. Step 5: Solve for x
    x = 108,857,137.24/15,389.81
  6. Step 6: Final answer
    x = 7,073.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.