Home / 28,171.64-38,886.80-17,424.81

Finding the Fourth Proportional to 28,171.64, 38,886.80 and 17,424.81

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Solution

The fourth proportional to 28,171.64, 38,886.80 and 17,424.81 is: 24,052.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.64 : 38,886.80 = 17,424.81 : x
  2. Step 2: Convert to fraction form
    28,171.64/38,886.80 = 17,424.81/x
  3. Step 3: Cross multiply
    28,171.64x = 38,886.80 × 17,424.81
  4. Step 4: Simplify right side
    28,171.64x = 677,594,984.20
  5. Step 5: Solve for x
    x = 677,594,984.20/28,171.64
  6. Step 6: Final answer
    x = 24,052.38

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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.