Home / 28,150.05-38,846.76-15,574.89

Finding the Fourth Proportional to 28,150.05, 38,846.76 and 15,574.89

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Solution

The fourth proportional to 28,150.05, 38,846.76 and 15,574.89 is: 21,493.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,150.05 : 38,846.76 = 15,574.89 : x
  2. Step 2: Convert to fraction form
    28,150.05/38,846.76 = 15,574.89/x
  3. Step 3: Cross multiply
    28,150.05x = 38,846.76 × 15,574.89
  4. Step 4: Simplify right side
    28,150.05x = 605,034,013.86
  5. Step 5: Solve for x
    x = 605,034,013.86/28,150.05
  6. Step 6: Final answer
    x = 21,493.18

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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.