Home / 42,321.56-63,431.38-15,646.28

Finding the Fourth Proportional to 42,321.56, 63,431.38 and 15,646.28

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Solution

The fourth proportional to 42,321.56, 63,431.38 and 15,646.28 is: 23,450.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,321.56 : 63,431.38 = 15,646.28 : x
  2. Step 2: Convert to fraction form
    42,321.56/63,431.38 = 15,646.28/x
  3. Step 3: Cross multiply
    42,321.56x = 63,431.38 × 15,646.28
  4. Step 4: Simplify right side
    42,321.56x = 992,465,132.27
  5. Step 5: Solve for x
    x = 992,465,132.27/42,321.56
  6. Step 6: Final answer
    x = 23,450.58

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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.