Home / 28,246.64-38,964.16-17,617.80

Finding the Fourth Proportional to 28,246.64, 38,964.16 and 17,617.80

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Solution

The fourth proportional to 28,246.64, 38,964.16 and 17,617.80 is: 24,302.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246.64 : 38,964.16 = 17,617.80 : x
  2. Step 2: Convert to fraction form
    28,246.64/38,964.16 = 17,617.80/x
  3. Step 3: Cross multiply
    28,246.64x = 38,964.16 × 17,617.80
  4. Step 4: Simplify right side
    28,246.64x = 686,462,778.05
  5. Step 5: Solve for x
    x = 686,462,778.05/28,246.64
  6. Step 6: Final answer
    x = 24,302.46

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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.