Home / 19,690.29-29,535.55-4,899.21

Finding the Fourth Proportional to 19,690.29, 29,535.55 and 4,899.21

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Solution

The fourth proportional to 19,690.29, 29,535.55 and 4,899.21 is: 7,348.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.29 : 29,535.55 = 4,899.21 : x
  2. Step 2: Convert to fraction form
    19,690.29/29,535.55 = 4,899.21/x
  3. Step 3: Cross multiply
    19,690.29x = 29,535.55 × 4,899.21
  4. Step 4: Simplify right side
    19,690.29x = 144,700,837.42
  5. Step 5: Solve for x
    x = 144,700,837.42/19,690.29
  6. Step 6: Final answer
    x = 7,348.84

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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.