Home / 28,770.31-43,157.22-9,049.51

Finding the Fourth Proportional to 28,770.31, 43,157.22 and 9,049.51

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Solution

The fourth proportional to 28,770.31, 43,157.22 and 9,049.51 is: 13,574.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,770.31 : 43,157.22 = 9,049.51 : x
  2. Step 2: Convert to fraction form
    28,770.31/43,157.22 = 9,049.51/x
  3. Step 3: Cross multiply
    28,770.31x = 43,157.22 × 9,049.51
  4. Step 4: Simplify right side
    28,770.31x = 390,551,693.96
  5. Step 5: Solve for x
    x = 390,551,693.96/28,770.31
  6. Step 6: Final answer
    x = 13,574.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.