Home / 28,052.36-38,712.36-15,305.83

Finding the Fourth Proportional to 28,052.36, 38,712.36 and 15,305.83

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Solution

The fourth proportional to 28,052.36, 38,712.36 and 15,305.83 is: 21,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,052.36 : 38,712.36 = 15,305.83 : x
  2. Step 2: Convert to fraction form
    28,052.36/38,712.36 = 15,305.83/x
  3. Step 3: Cross multiply
    28,052.36x = 38,712.36 × 15,305.83
  4. Step 4: Simplify right side
    28,052.36x = 592,524,761.67
  5. Step 5: Solve for x
    x = 592,524,761.67/28,052.36
  6. Step 6: Final answer
    x = 21,122.10

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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.