Home / 16,911.51-23,344.43-15,140.04

Finding the Fourth Proportional to 16,911.51, 23,344.43 and 15,140.04

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Solution

The fourth proportional to 16,911.51, 23,344.43 and 15,140.04 is: 20,899.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,911.51 : 23,344.43 = 15,140.04 : x
  2. Step 2: Convert to fraction form
    16,911.51/23,344.43 = 15,140.04/x
  3. Step 3: Cross multiply
    16,911.51x = 23,344.43 × 15,140.04
  4. Step 4: Simplify right side
    16,911.51x = 353,435,603.98
  5. Step 5: Solve for x
    x = 353,435,603.98/16,911.51
  6. Step 6: Final answer
    x = 20,899.12

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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.