Home / 51,009.57-70,391.52-28,039.47

Finding the Fourth Proportional to 51,009.57, 70,391.52 and 28,039.47

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Solution

The fourth proportional to 51,009.57, 70,391.52 and 28,039.47 is: 38,693.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,009.57 : 70,391.52 = 28,039.47 : x
  2. Step 2: Convert to fraction form
    51,009.57/70,391.52 = 28,039.47/x
  3. Step 3: Cross multiply
    51,009.57x = 70,391.52 × 28,039.47
  4. Step 4: Simplify right side
    51,009.57x = 1,973,740,833.88
  5. Step 5: Solve for x
    x = 1,973,740,833.88/51,009.57
  6. Step 6: Final answer
    x = 38,693.54

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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.