Home / 19,680.66-29,522.21-4,889.93

Finding the Fourth Proportional to 19,680.66, 29,522.21 and 4,889.93

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Solution

The fourth proportional to 19,680.66, 29,522.21 and 4,889.93 is: 7,335.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.66 : 29,522.21 = 4,889.93 : x
  2. Step 2: Convert to fraction form
    19,680.66/29,522.21 = 4,889.93/x
  3. Step 3: Cross multiply
    19,680.66x = 29,522.21 × 4,889.93
  4. Step 4: Simplify right side
    19,680.66x = 144,361,368.28
  5. Step 5: Solve for x
    x = 144,361,368.28/19,680.66
  6. Step 6: Final answer
    x = 7,335.19

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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.