Home / 42,342.39-63,538.19-18,968.83

Finding the Fourth Proportional to 42,342.39, 63,538.19 and 18,968.83

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Solution

The fourth proportional to 42,342.39, 63,538.19 and 18,968.83 is: 28,464.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,342.39 : 63,538.19 = 18,968.83 : x
  2. Step 2: Convert to fraction form
    42,342.39/63,538.19 = 18,968.83/x
  3. Step 3: Cross multiply
    42,342.39x = 63,538.19 × 18,968.83
  4. Step 4: Simplify right side
    42,342.39x = 1,205,244,870.93
  5. Step 5: Solve for x
    x = 1,205,244,870.93/42,342.39
  6. Step 6: Final answer
    x = 28,464.26

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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.