Home / 28,167.36-38,871.48-16,228.68

Finding the Fourth Proportional to 28,167.36, 38,871.48 and 16,228.68

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Solution

The fourth proportional to 28,167.36, 38,871.48 and 16,228.68 is: 22,395.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,167.36 : 38,871.48 = 16,228.68 : x
  2. Step 2: Convert to fraction form
    28,167.36/38,871.48 = 16,228.68/x
  3. Step 3: Cross multiply
    28,167.36x = 38,871.48 × 16,228.68
  4. Step 4: Simplify right side
    28,167.36x = 630,832,810.05
  5. Step 5: Solve for x
    x = 630,832,810.05/28,167.36
  6. Step 6: Final answer
    x = 22,395.88

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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.