Home / 28,164.28-38,864.03-16,831.51

Finding the Fourth Proportional to 28,164.28, 38,864.03 and 16,831.51

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Solution

The fourth proportional to 28,164.28, 38,864.03 and 16,831.51 is: 23,225.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,164.28 : 38,864.03 = 16,831.51 : x
  2. Step 2: Convert to fraction form
    28,164.28/38,864.03 = 16,831.51/x
  3. Step 3: Cross multiply
    28,164.28x = 38,864.03 × 16,831.51
  4. Step 4: Simplify right side
    28,164.28x = 654,140,309.59
  5. Step 5: Solve for x
    x = 654,140,309.59/28,164.28
  6. Step 6: Final answer
    x = 23,225.89

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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.