Home / 39,270.42-54,193.86-21,365.55

Finding the Fourth Proportional to 39,270.42, 54,193.86 and 21,365.55

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Solution

The fourth proportional to 39,270.42, 54,193.86 and 21,365.55 is: 29,484.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,270.42 : 54,193.86 = 21,365.55 : x
  2. Step 2: Convert to fraction form
    39,270.42/54,193.86 = 21,365.55/x
  3. Step 3: Cross multiply
    39,270.42x = 54,193.86 × 21,365.55
  4. Step 4: Simplify right side
    39,270.42x = 1,157,881,625.52
  5. Step 5: Solve for x
    x = 1,157,881,625.52/39,270.42
  6. Step 6: Final answer
    x = 29,484.83

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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.