Home / 30,548.32-42,157.19-17,801.21

Finding the Fourth Proportional to 30,548.32, 42,157.19 and 17,801.21

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Solution

The fourth proportional to 30,548.32, 42,157.19 and 17,801.21 is: 24,565.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,548.32 : 42,157.19 = 17,801.21 : x
  2. Step 2: Convert to fraction form
    30,548.32/42,157.19 = 17,801.21/x
  3. Step 3: Cross multiply
    30,548.32x = 42,157.19 × 17,801.21
  4. Step 4: Simplify right side
    30,548.32x = 750,448,992.20
  5. Step 5: Solve for x
    x = 750,448,992.20/30,548.32
  6. Step 6: Final answer
    x = 24,565.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.