Home / 20,462.46-28,237.19-11,510.81

Finding the Fourth Proportional to 20,462.46, 28,237.19 and 11,510.81

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Solution

The fourth proportional to 20,462.46, 28,237.19 and 11,510.81 is: 15,884.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,462.46 : 28,237.19 = 11,510.81 : x
  2. Step 2: Convert to fraction form
    20,462.46/28,237.19 = 11,510.81/x
  3. Step 3: Cross multiply
    20,462.46x = 28,237.19 × 11,510.81
  4. Step 4: Simplify right side
    20,462.46x = 325,032,929.02
  5. Step 5: Solve for x
    x = 325,032,929.02/20,462.46
  6. Step 6: Final answer
    x = 15,884.35

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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.