Home / 19,680.16-29,517.36-10,317.04

Finding the Fourth Proportional to 19,680.16, 29,517.36 and 10,317.04

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Solution

The fourth proportional to 19,680.16, 29,517.36 and 10,317.04 is: 15,474.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.16 : 29,517.36 = 10,317.04 : x
  2. Step 2: Convert to fraction form
    19,680.16/29,517.36 = 10,317.04/x
  3. Step 3: Cross multiply
    19,680.16x = 29,517.36 × 10,317.04
  4. Step 4: Simplify right side
    19,680.16x = 304,531,783.81
  5. Step 5: Solve for x
    x = 304,531,783.81/19,680.16
  6. Step 6: Final answer
    x = 15,474.05

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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.