Home / 42,383.40-63,611.55-18,727.35

Finding the Fourth Proportional to 42,383.40, 63,611.55 and 18,727.35

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Solution

The fourth proportional to 42,383.40, 63,611.55 and 18,727.35 is: 28,107.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,383.40 : 63,611.55 = 18,727.35 : x
  2. Step 2: Convert to fraction form
    42,383.40/63,611.55 = 18,727.35/x
  3. Step 3: Cross multiply
    42,383.40x = 63,611.55 × 18,727.35
  4. Step 4: Simplify right side
    42,383.40x = 1,191,275,760.89
  5. Step 5: Solve for x
    x = 1,191,275,760.89/42,383.40
  6. Step 6: Final answer
    x = 28,107.13

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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.