Home / 28,066.71-38,731.10-16,730.36

Finding the Fourth Proportional to 28,066.71, 38,731.10 and 16,730.36

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Solution

The fourth proportional to 28,066.71, 38,731.10 and 16,730.36 is: 23,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.71 : 38,731.10 = 16,730.36 : x
  2. Step 2: Convert to fraction form
    28,066.71/38,731.10 = 16,730.36/x
  3. Step 3: Cross multiply
    28,066.71x = 38,731.10 × 16,730.36
  4. Step 4: Simplify right side
    28,066.71x = 647,985,426.10
  5. Step 5: Solve for x
    x = 647,985,426.10/28,066.71
  6. Step 6: Final answer
    x = 23,087.33

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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.