Home / 39,975.19-59,963.09-13,680.16

Finding the Fourth Proportional to 39,975.19, 59,963.09 and 13,680.16

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Solution

The fourth proportional to 39,975.19, 59,963.09 and 13,680.16 is: 20,520.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,975.19 : 59,963.09 = 13,680.16 : x
  2. Step 2: Convert to fraction form
    39,975.19/59,963.09 = 13,680.16/x
  3. Step 3: Cross multiply
    39,975.19x = 59,963.09 × 13,680.16
  4. Step 4: Simplify right side
    39,975.19x = 820,304,446.99
  5. Step 5: Solve for x
    x = 820,304,446.99/39,975.19
  6. Step 6: Final answer
    x = 20,520.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.