Home / 39,475.55-54,476.41-21,570.56

Finding the Fourth Proportional to 39,475.55, 54,476.41 and 21,570.56

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Solution

The fourth proportional to 39,475.55, 54,476.41 and 21,570.56 is: 29,767.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,475.55 : 54,476.41 = 21,570.56 : x
  2. Step 2: Convert to fraction form
    39,475.55/54,476.41 = 21,570.56/x
  3. Step 3: Cross multiply
    39,475.55x = 54,476.41 × 21,570.56
  4. Step 4: Simplify right side
    39,475.55x = 1,175,086,609.82
  5. Step 5: Solve for x
    x = 1,175,086,609.82/39,475.55
  6. Step 6: Final answer
    x = 29,767.45

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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.