Home / 16,831.28-23,090.20-15,826.16

Finding the Fourth Proportional to 16,831.28, 23,090.20 and 15,826.16

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Solution

The fourth proportional to 16,831.28, 23,090.20 and 15,826.16 is: 21,711.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,831.28 : 23,090.20 = 15,826.16 : x
  2. Step 2: Convert to fraction form
    16,831.28/23,090.20 = 15,826.16/x
  3. Step 3: Cross multiply
    16,831.28x = 23,090.20 × 15,826.16
  4. Step 4: Simplify right side
    16,831.28x = 365,429,199.63
  5. Step 5: Solve for x
    x = 365,429,199.63/16,831.28
  6. Step 6: Final answer
    x = 21,711.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.