Home / 19,817.40-27,302.04-13,839.60

Finding the Fourth Proportional to 19,817.40, 27,302.04 and 13,839.60

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Solution

The fourth proportional to 19,817.40, 27,302.04 and 13,839.60 is: 19,066.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,817.40 : 27,302.04 = 13,839.60 : x
  2. Step 2: Convert to fraction form
    19,817.40/27,302.04 = 13,839.60/x
  3. Step 3: Cross multiply
    19,817.40x = 27,302.04 × 13,839.60
  4. Step 4: Simplify right side
    19,817.40x = 377,849,312.78
  5. Step 5: Solve for x
    x = 377,849,312.78/19,817.40
  6. Step 6: Final answer
    x = 19,066.54

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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.