Home / 39,302.06-54,238.26-21,396.20

Finding the Fourth Proportional to 39,302.06, 54,238.26 and 21,396.20

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Solution

The fourth proportional to 39,302.06, 54,238.26 and 21,396.20 is: 29,527.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,302.06 : 54,238.26 = 21,396.20 : x
  2. Step 2: Convert to fraction form
    39,302.06/54,238.26 = 21,396.20/x
  3. Step 3: Cross multiply
    39,302.06x = 54,238.26 × 21,396.20
  4. Step 4: Simplify right side
    39,302.06x = 1,160,492,658.61
  5. Step 5: Solve for x
    x = 1,160,492,658.61/39,302.06
  6. Step 6: Final answer
    x = 29,527.53

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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.