Home / 42,620.07-63,930.21-11,455.32

Finding the Fourth Proportional to 42,620.07, 63,930.21 and 11,455.32

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Solution

The fourth proportional to 42,620.07, 63,930.21 and 11,455.32 is: 17,183.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,620.07 : 63,930.21 = 11,455.32 : x
  2. Step 2: Convert to fraction form
    42,620.07/63,930.21 = 11,455.32/x
  3. Step 3: Cross multiply
    42,620.07x = 63,930.21 × 11,455.32
  4. Step 4: Simplify right side
    42,620.07x = 732,341,013.22
  5. Step 5: Solve for x
    x = 732,341,013.22/42,620.07
  6. Step 6: Final answer
    x = 17,183.01

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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.