Home / 28,206.40-38,923.78-16,270.24

Finding the Fourth Proportional to 28,206.40, 38,923.78 and 16,270.24

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Solution

The fourth proportional to 28,206.40, 38,923.78 and 16,270.24 is: 22,452.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,206.40 : 38,923.78 = 16,270.24 : x
  2. Step 2: Convert to fraction form
    28,206.40/38,923.78 = 16,270.24/x
  3. Step 3: Cross multiply
    28,206.40x = 38,923.78 × 16,270.24
  4. Step 4: Simplify right side
    28,206.40x = 633,299,242.31
  5. Step 5: Solve for x
    x = 633,299,242.31/28,206.40
  6. Step 6: Final answer
    x = 22,452.32

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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.