Home / 39,475.42-54,474.86-21,570.40

Finding the Fourth Proportional to 39,475.42, 54,474.86 and 21,570.40

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Solution

The fourth proportional to 39,475.42, 54,474.86 and 21,570.40 is: 29,766.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,475.42 : 54,474.86 = 21,570.40 : x
  2. Step 2: Convert to fraction form
    39,475.42/54,474.86 = 21,570.40/x
  3. Step 3: Cross multiply
    39,475.42x = 54,474.86 × 21,570.40
  4. Step 4: Simplify right side
    39,475.42x = 1,175,044,642.16
  5. Step 5: Solve for x
    x = 1,175,044,642.16/39,475.42
  6. Step 6: Final answer
    x = 29,766.49

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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.