Home / 51,015.91-70,398.54-28,353.43

Finding the Fourth Proportional to 51,015.91, 70,398.54 and 28,353.43

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Solution

The fourth proportional to 51,015.91, 70,398.54 and 28,353.43 is: 39,125.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,015.91 : 70,398.54 = 28,353.43 : x
  2. Step 2: Convert to fraction form
    51,015.91/70,398.54 = 28,353.43/x
  3. Step 3: Cross multiply
    51,015.91x = 70,398.54 × 28,353.43
  4. Step 4: Simplify right side
    51,015.91x = 1,996,039,724.00
  5. Step 5: Solve for x
    x = 1,996,039,724.00/51,015.91
  6. Step 6: Final answer
    x = 39,125.83

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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.