Home / 57,368.36-86,056.86-15,815

Finding the Fourth Proportional to 57,368.36, 86,056.86 and 15,815

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Solution

The fourth proportional to 57,368.36, 86,056.86 and 15,815 is: 23,723.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,368.36 : 86,056.86 = 15,815 : x
  2. Step 2: Convert to fraction form
    57,368.36/86,056.86 = 15,815/x
  3. Step 3: Cross multiply
    57,368.36x = 86,056.86 × 15,815
  4. Step 4: Simplify right side
    57,368.36x = 1,360,989,240.90
  5. Step 5: Solve for x
    x = 1,360,989,240.90/57,368.36
  6. Step 6: Final answer
    x = 23,723.69

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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.