Home / 57,418.12-86,127.06-15,865

Finding the Fourth Proportional to 57,418.12, 86,127.06 and 15,865

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Solution

The fourth proportional to 57,418.12, 86,127.06 and 15,865 is: 23,797.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,418.12 : 86,127.06 = 15,865 : x
  2. Step 2: Convert to fraction form
    57,418.12/86,127.06 = 15,865/x
  3. Step 3: Cross multiply
    57,418.12x = 86,127.06 × 15,865
  4. Step 4: Simplify right side
    57,418.12x = 1,366,405,806.90
  5. Step 5: Solve for x
    x = 1,366,405,806.90/57,418.12
  6. Step 6: Final answer
    x = 23,797.47

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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.