Home / 51,531.28-77,293.20-15,991.69

Finding the Fourth Proportional to 51,531.28, 77,293.20 and 15,991.69

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Solution

The fourth proportional to 51,531.28, 77,293.20 and 15,991.69 is: 23,986.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,531.28 : 77,293.20 = 15,991.69 : x
  2. Step 2: Convert to fraction form
    51,531.28/77,293.20 = 15,991.69/x
  3. Step 3: Cross multiply
    51,531.28x = 77,293.20 × 15,991.69
  4. Step 4: Simplify right side
    51,531.28x = 1,236,048,893.51
  5. Step 5: Solve for x
    x = 1,236,048,893.51/51,531.28
  6. Step 6: Final answer
    x = 23,986.38

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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.