Home / 28,157.58-38,841.90-18,087.51

Finding the Fourth Proportional to 28,157.58, 38,841.90 and 18,087.51

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Solution

The fourth proportional to 28,157.58, 38,841.90 and 18,087.51 is: 24,950.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,157.58 : 38,841.90 = 18,087.51 : x
  2. Step 2: Convert to fraction form
    28,157.58/38,841.90 = 18,087.51/x
  3. Step 3: Cross multiply
    28,157.58x = 38,841.90 × 18,087.51
  4. Step 4: Simplify right side
    28,157.58x = 702,553,114.01
  5. Step 5: Solve for x
    x = 702,553,114.01/28,157.58
  6. Step 6: Final answer
    x = 24,950.76

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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.