Home / 20,601.24-28,430.28-11,650.10

Finding the Fourth Proportional to 20,601.24, 28,430.28 and 11,650.10

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Solution

The fourth proportional to 20,601.24, 28,430.28 and 11,650.10 is: 16,077.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.24 : 28,430.28 = 11,650.10 : x
  2. Step 2: Convert to fraction form
    20,601.24/28,430.28 = 11,650.10/x
  3. Step 3: Cross multiply
    20,601.24x = 28,430.28 × 11,650.10
  4. Step 4: Simplify right side
    20,601.24x = 331,215,686.37
  5. Step 5: Solve for x
    x = 331,215,686.37/20,601.24
  6. Step 6: Final answer
    x = 16,077.47

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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.