Home / 13,935.49-20,903.24-3,547.21

Finding the Fourth Proportional to 13,935.49, 20,903.24 and 3,547.21

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Solution

The fourth proportional to 13,935.49, 20,903.24 and 3,547.21 is: 5,320.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.49 : 20,903.24 = 3,547.21 : x
  2. Step 2: Convert to fraction form
    13,935.49/20,903.24 = 3,547.21/x
  3. Step 3: Cross multiply
    13,935.49x = 20,903.24 × 3,547.21
  4. Step 4: Simplify right side
    13,935.49x = 74,148,181.96
  5. Step 5: Solve for x
    x = 74,148,181.96/13,935.49
  6. Step 6: Final answer
    x = 5,320.82

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Similar ratio
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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.