Home / 16,911.76-23,344.77-15,140.29

Finding the Fourth Proportional to 16,911.76, 23,344.77 and 15,140.29

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Solution

The fourth proportional to 16,911.76, 23,344.77 and 15,140.29 is: 20,899.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,911.76 : 23,344.77 = 15,140.29 : x
  2. Step 2: Convert to fraction form
    16,911.76/23,344.77 = 15,140.29/x
  3. Step 3: Cross multiply
    16,911.76x = 23,344.77 × 15,140.29
  4. Step 4: Simplify right side
    16,911.76x = 353,446,587.78
  5. Step 5: Solve for x
    x = 353,446,587.78/16,911.76
  6. Step 6: Final answer
    x = 20,899.46

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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.